http://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&feed=atom&action=historyMamiya/Sekor TL/DTL series - Revision history2024-03-29T15:34:17ZRevision history for this page on the wikiMediaWiki 1.31.1http://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=220752&oldid=prevVoxphoto: /* Links */ better Butkus link; link scan of 1966 launch ad2023-01-24T15:11:45Z<p><span dir="auto"><span class="autocomment">Links: </span> better Butkus link; link scan of 1966 launch ad</span></p>
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</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l129" >Line 129:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.butkus.org/chinon/mamiya/mamiya_tl/mamiya_tl-splash.htm Mamiya TL Manual] in HTML at Michael Butkus' [http://www.butkus.org/chinon/index.html Orphan Cameras]  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.butkus.org/chinon/mamiya/mamiya_tl/mamiya_tl-splash.htm Mamiya TL Manual] in HTML at Michael Butkus' [http://www.butkus.org/chinon/index.html Orphan Cameras]  </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [https://www.butkus.org/chinon/mamiya.htm Mamiya DTL <del class="diffchange diffchange-inline">PDF manuals</del>] at [https://www.butkus.org/chinon/index.html OrphanCameras.com]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [https://www.butkus.org/chinon/mamiya<ins class="diffchange diffchange-inline">/mamiya_1000dtl/1000dtl-splash</ins>.htm Mamiya <ins class="diffchange diffchange-inline">1000 </ins>DTL <ins class="diffchange diffchange-inline">manual</ins>] at [https://www.butkus.org/chinon/index.html OrphanCameras.com]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* [https://www.flickr.com/photos/camerawiki/52625953842/in/pool-camerawiki/ 1000 TL launch advertising in the July, 1966, ''Popular Photography''] (Vol. 59, No.1; pages 16-17)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://web.archive.org/web/20050412121437/http://www.eddy.uni-duisburg.de/joerg/allerlei/mamiya/tl.html The Mamiya TL Family] at Joerg Krueger's [https://web.archive.org/web/20050629081718/http://eddy.uni-duisburg.de/joerg/allerlei/mamiya/mamiya.html Mamiya 35mm SLRs Homepage] (archived)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://web.archive.org/web/20050412121437/http://www.eddy.uni-duisburg.de/joerg/allerlei/mamiya/tl.html The Mamiya TL Family] at Joerg Krueger's [https://web.archive.org/web/20050629081718/http://eddy.uni-duisburg.de/joerg/allerlei/mamiya/mamiya.html Mamiya 35mm SLRs Homepage] (archived)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Documents (PDF) uploaded at the Apple Mac forum [http://macgui.com/index.php Mac GUI] by user [http://macgui.com/blogs/?u=2 Dog Cow]:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Documents (PDF) uploaded at the Apple Mac forum [http://macgui.com/index.php Mac GUI] by user [http://macgui.com/blogs/?u=2 Dog Cow]:</div></td></tr>
</table>Voxphotohttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=220502&oldid=prevVoxphoto: wiki-link "open aperture metering" reference2023-01-16T16:30:23Z<p>wiki-link "open aperture metering" reference</p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 16:30, 16 January 2023</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. This is undeniably an exaggeration, but the top-of-the-line DTL models were excellent performers for the time.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. This is undeniably an exaggeration, but the top-of-the-line DTL models were excellent performers for the time.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Indeed, the DTL 1000 was innovative and technically impressive in offering two metering modes. It also offers all the features associated with a high-end consumer or semi-professional camera--save that some but not all cameras of this time <del class="diffchange diffchange-inline">would </del>also <del class="diffchange diffchange-inline">offer wide</del>-<del class="diffchange diffchange-inline">open </del>metering, a feature that Mamiya would add in their later [[Mamiya DSX 1000|SX models]]. Being based on the basic m42 mount originated by Contax and used most prominently by Pentax, the DTL lacks an interlock between the aperture ring and the meter, and could only meter with the aperture stopped down.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Indeed, the DTL 1000 was innovative and technically impressive in offering two metering modes. It also offers all the features associated with a high-end consumer or semi-professional camera--save that some but not all cameras of this time also <ins class="diffchange diffchange-inline">offered [[open</ins>-<ins class="diffchange diffchange-inline">aperture </ins>metering<ins class="diffchange diffchange-inline">]]</ins>, a feature that Mamiya would add in their later [[Mamiya DSX 1000|SX models]]. Being based on the basic m42 mount originated by Contax and used most prominently by Pentax, the DTL lacks an interlock between the aperture ring and the meter, and could only meter with the aperture stopped down.</div></td></tr>
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</table>Voxphotohttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=220422&oldid=prevVoxphoto: /* Gallery */ removing 528TL photo which was not in the correct article2023-01-14T16:08:00Z<p><span dir="auto"><span class="autocomment">Gallery: </span> removing 528TL photo which was not in the correct article</span></p>
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</table>Voxphotohttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=210124&oldid=prevTitrisol: /* Metering */2021-10-25T13:38:07Z<p><span dir="auto"><span class="autocomment">Metering</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot meter is actually a square zone at the bottom center of the viewfinder, marked by brackets and noticeably darker than the rest of the frame. This is because the CDS cell is inside the mirror behind a semi-silvered patch. The brackets indicate the approximate extent of this area more clearly. Inside this area is an "S" for spot metering, and just outside it on the right is an "A" for averaging. A small triangular flag points to the selected mode so that the photographer does not even have to touch the switch to know what mode is selected.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot meter is actually a square zone at the bottom center of the viewfinder, marked by brackets and noticeably darker than the rest of the frame. This is because the CDS cell is inside the mirror behind a semi-silvered patch. The brackets indicate the approximate extent of this area more clearly. Inside this area is an "S" for spot metering, and just outside it on the right is an "A" for averaging. A small triangular flag points to the selected mode so that the photographer does not even have to touch the switch to know what mode is selected.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The concept of having spot metering in an SLR was a unique feature for its day, and was protected by U.S. Patent No. [http://pdfpiw.uspto.gov/.piw?Docid=3612703 3,612,703], filed February 29, 1968. Interestingly, the single metering mode offered by the TL models was the "spot" mode, not the averaging mode one might expect. Thus it was the Mamiya TL and not [[Pentax]] who implemented the original <del class="diffchange diffchange-inline">meaning </del>of Pentax's [[Spotmatic]] <del class="diffchange diffchange-inline">brand</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The concept of having spot metering in an SLR was a unique feature for its day, and was protected by U.S. Patent No. [http://pdfpiw.uspto.gov/.piw?Docid=3612703 3,612,703], filed February 29, 1968. Interestingly, the single metering mode offered by the TL models was the "spot" mode, not the averaging mode one might expect. Thus it was the Mamiya TL and not [[Pentax]] who implemented the original <ins class="diffchange diffchange-inline">concept </ins>of Pentax's [[Spotmatic]] <ins class="diffchange diffchange-inline">prototype</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot is fairly well-defined and gives a reading that doesn't have much bleed-over from outside the indicated zone, though its spot is fairly large and with a 50mm lens it has a viewing angle somewhat larger than the 1 degree of most handheld spot meters such as those made popular by Pentax, Minolta et al. and used often with large format cameras. It remains however one of the earliest and cheapest cameras that a competent photographer can execute zone-system photography on with some degree of accuracy, though there are limitations inherent in roll film as compared to sheet film that limit the flexibility of the zone system. Ansel Adams' trilogy of textbooks on the subject of photography elaborate further on zone system photography on small and medium format. At any rate spot metering in an SLR is associated with high-end German cameras and its presence on the TL and DTL series and the followup SX series is rather exceptional, even if its execution is less precise than on some cameras.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot is fairly well-defined and gives a reading that doesn't have much bleed-over from outside the indicated zone, though its spot is fairly large and with a 50mm lens it has a viewing angle somewhat larger than the 1 degree of most handheld spot meters such as those made popular by Pentax, Minolta et al. and used often with large format cameras. It remains however one of the earliest and cheapest cameras that a competent photographer can execute zone-system photography on with some degree of accuracy, though there are limitations inherent in roll film as compared to sheet film that limit the flexibility of the zone system. Ansel Adams' trilogy of textbooks on the subject of photography elaborate further on zone system photography on small and medium format. At any rate spot metering in an SLR is associated with high-end German cameras and its presence on the TL and DTL series and the followup SX series is rather exceptional, even if its execution is less precise than on some cameras.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>As mentioned above, the meter operates only when the lens is stopped down to shooting aperture. But it may be less than obvious at first glance how one is intended to stop down the lens and activate the meter on a TL/DTL body. Mamiya made an interesting choice to have the film-wind lever also double as the stop-down lever and meter switch. The user pulls the lever away from the body until it clicks; after which, pressing the lever inwards against spring pressure stops down the lens and activates the meter circuit. To put the camera away without risking accidentally draining the single 1.5v silver-oxide meter battery, one stows the wind lever in its "off" position by clicking the round cap atop its axis.  The switching mechanism is also unusual: instead of a fixed contact, the metal band around the battery is a loose fit until the wind lever is pushed inwards and the band is pressed in tight against the battery to complete the circuit.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As mentioned above, the meter operates only when the lens is stopped down to shooting aperture. But it may be less than obvious at first glance how one is intended to stop down the lens and activate the meter on a TL/DTL body. Mamiya made an interesting choice to have the film-wind lever also double as the stop-down lever and meter switch. The user pulls the lever away from the body until it clicks; after which, pressing the lever inwards against spring pressure stops down the lens and activates the meter circuit. To put the camera away without risking accidentally draining the single 1.5v silver-oxide meter battery, one stows the wind lever in its "off" position by clicking the round cap atop its axis.  The switching mechanism is also unusual: instead of a fixed contact, the metal band around the battery is a loose fit until the wind lever is pushed inwards and the band is pressed in tight against the battery to complete the circuit.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Lens mount==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Lens mount==</div></td></tr>
</table>Titrisolhttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=210123&oldid=prevTitrisol: /* Lens mount */ format of link2021-10-25T13:35:32Z<p><span dir="auto"><span class="autocomment">Lens mount: </span> format of link</span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:35, 25 October 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l40" >Line 40:</td>
<td colspan="2" class="diff-lineno">Line 40:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The Mamiya/Sekor lenses are somewhat sought after today as having a fairly good reputation and being compatible with most m42 cameras. The camera itself uses the standard automatic-aperture variation of the m42 thread mount similar to that used on most [[Pentax Spotmatic]]s and many other cameras. An enormous variety of lenses fit this camera, though some do not and some can even become stuck.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The Mamiya/Sekor lenses are somewhat sought after today as having a fairly good reputation and being compatible with most m42 cameras. The camera itself uses the standard automatic-aperture variation of the m42 thread mount similar to that used on most [[Pentax Spotmatic]]s and many other cameras. An enormous variety of lenses fit this camera, though some do not and some can even become stuck.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The Pentax [[<del class="diffchange diffchange-inline">http://camera-wiki.org/wiki/</del>Takumar#Super_Multi_Coated_.28SMC.29_Lenses|Takumar Super-Multi-Coated]] lenses introduced with the [[Spotmatic]] F are not recommended for the TL and DTL. At best some of them will not screw down completely, as the small pin on the outside rear face of the lens will catch on the trailing edge of one of the boltholes on the front of the camera, preventing it from being tightened further (though not preventing it from being unscrewed). Forcing it will damage the lens. At worst the pin can become trapped in the bolthole and trap the lens in an incompletely mounted position, rendering the camera useless and requiring extensive disassembly of lens and/or camera to remove it. While far from the only camera to have this problem the TL/DTL seems to be one whose construction makes bypassing this problem impossible, unlike on say, the Zenit E.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The Pentax [[Takumar#Super_Multi_Coated_.28SMC.29_Lenses|Takumar Super-Multi-Coated]] lenses introduced with the [[Spotmatic]] F are not recommended for the TL and DTL. At best some of them will not screw down completely, as the small pin on the outside rear face of the lens will catch on the trailing edge of one of the boltholes on the front of the camera, preventing it from being tightened further (though not preventing it from being unscrewed). Forcing it will damage the lens. At worst the pin can become trapped in the bolthole and trap the lens in an incompletely mounted position, rendering the camera useless and requiring extensive disassembly of lens and/or camera to remove it. While far from the only camera to have this problem the TL/DTL seems to be one whose construction makes bypassing this problem impossible, unlike on say, the Zenit E.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td></tr>
</table>Titrisolhttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=210122&oldid=prevTitrisol: /* Lens mount */ added links2021-10-25T13:35:02Z<p><span dir="auto"><span class="autocomment">Lens mount: </span> added links</span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:35, 25 October 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l40" >Line 40:</td>
<td colspan="2" class="diff-lineno">Line 40:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The Mamiya/Sekor lenses are somewhat sought after today as having a fairly good reputation and being compatible with most m42 cameras. The camera itself uses the standard automatic-aperture variation of the m42 thread mount similar to that used on most [[Pentax Spotmatic]]s and many other cameras. An enormous variety of lenses fit this camera, though some do not and some can even become stuck.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The Mamiya/Sekor lenses are somewhat sought after today as having a fairly good reputation and being compatible with most m42 cameras. The camera itself uses the standard automatic-aperture variation of the m42 thread mount similar to that used on most [[Pentax Spotmatic]]s and many other cameras. An enormous variety of lenses fit this camera, though some do not and some can even become stuck.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The Pentax Takumar Super-Multi-Coated lenses introduced with the Spotmatic F are not recommended for the TL and DTL. At best some of them will not screw down completely, as the small pin on the outside rear face of the lens will catch on the trailing edge of one of the boltholes on the front of the camera, preventing it from being tightened further (though not preventing it from being unscrewed). Forcing it will damage the lens. At worst the pin can become trapped in the bolthole and trap the lens in an incompletely mounted position, rendering the camera useless and requiring extensive disassembly of lens and/or camera to remove it. While far from the only camera to have this problem the TL/DTL seems to be one whose construction makes bypassing this problem impossible, unlike on say, the Zenit E.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The Pentax <ins class="diffchange diffchange-inline">[[http://camera-wiki.org/wiki/Takumar#Super_Multi_Coated_.28SMC.29_Lenses|</ins>Takumar Super-Multi-Coated<ins class="diffchange diffchange-inline">]] </ins>lenses introduced with the <ins class="diffchange diffchange-inline">[[</ins>Spotmatic<ins class="diffchange diffchange-inline">]] </ins>F are not recommended for the TL and DTL. At best some of them will not screw down completely, as the small pin on the outside rear face of the lens will catch on the trailing edge of one of the boltholes on the front of the camera, preventing it from being tightened further (though not preventing it from being unscrewed). Forcing it will damage the lens. At worst the pin can become trapped in the bolthole and trap the lens in an incompletely mounted position, rendering the camera useless and requiring extensive disassembly of lens and/or camera to remove it. While far from the only camera to have this problem the TL/DTL seems to be one whose construction makes bypassing this problem impossible, unlike on say, the Zenit E.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td></tr>
</table>Titrisolhttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=209366&oldid=prevMbutkus: /* Links */2021-09-27T16:56:55Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 16:56, 27 September 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l136" >Line 136:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In English:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In English:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.butkus.org/chinon/mamiya/mamiya_tl/mamiya_tl-splash.htm Mamiya TL Manual] in HTML at Michael Butkus' [http://www.butkus.org/chinon/index.html Orphan Cameras] <del class="diffchange diffchange-inline">(donation suggested)</del></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.butkus.org/chinon/mamiya/mamiya_tl/mamiya_tl-splash.htm Mamiya TL Manual] in HTML at Michael Butkus' [http://www.butkus.org/chinon/index.html Orphan Cameras]  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* [https://www.butkus.org/chinon/mamiya.htm Mamiya DTL PDF manuals] at [https://www.butkus.org/chinon/index.html OrphanCameras.com]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://web.archive.org/web/20050412121437/http://www.eddy.uni-duisburg.de/joerg/allerlei/mamiya/tl.html The Mamiya TL Family] at Joerg Krueger's [https://web.archive.org/web/20050629081718/http://eddy.uni-duisburg.de/joerg/allerlei/mamiya/mamiya.html Mamiya 35mm SLRs Homepage] (archived)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://web.archive.org/web/20050412121437/http://www.eddy.uni-duisburg.de/joerg/allerlei/mamiya/tl.html The Mamiya TL Family] at Joerg Krueger's [https://web.archive.org/web/20050629081718/http://eddy.uni-duisburg.de/joerg/allerlei/mamiya/mamiya.html Mamiya 35mm SLRs Homepage] (archived)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Documents (PDF) uploaded at the Apple Mac forum [http://macgui.com/index.php Mac GUI] by user [http://macgui.com/blogs/?u=2 Dog Cow]:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Documents (PDF) uploaded at the Apple Mac forum [http://macgui.com/index.php Mac GUI] by user [http://macgui.com/blogs/?u=2 Dog Cow]:</div></td></tr>
</table>Mbutkushttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=202124&oldid=prevLivestockgeorge at 02:50, 24 November 20202020-11-24T02:50:29Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 02:50, 24 November 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l43" >Line 43:</td>
<td colspan="2" class="diff-lineno">Line 43:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==Miscellaneous==</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Even by the SLR standards of their day, the TL and DTL models were at the large and heavy end of the spectrum. A 1000 DTL with its original 50mm f/1.4 lens weighs 1,077g (2 lb. 6 oz.) and measures 150 x 94 x 100 mm (W x H x D).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Even by the SLR standards of their day, the TL and DTL models were at the large and heavy end of the spectrum. A 1000 DTL with its original 50mm f/1.4 lens weighs 1,077g (2 lb. 6 oz.) and measures 150 x 94 x 100 mm (W x H x D).</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The self timer is wound by the customary lever on the front of the camera, but the lever swings clockwise, the opposite direction to the vast majority of SLR self timers, so the photographer can comfortably use it as a grip without accidentally charging the timer. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The cocking lever, in addition to the complicated mechanism for activating the meter, stopping down the lens and that for locking the lever in the "off" position, also features single-or-multi-stroke operation, so the photographer may, at his or her convenience, cock it in one (rather short) stroke or in any number of shorter strokes. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Gallery==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Gallery==</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l113" >Line 113:</td>
<td colspan="2" class="diff-lineno">Line 119:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Format: 36x24mm on 135 film</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Format: 36x24mm on 135 film</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Viewfinder: fixed pentaprism with microprism spot and meter needle (meter selection indicator on DTL models.)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Viewfinder: fixed pentaprism with microprism spot and meter needle (meter selection indicator on DTL models.)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Shutter: focal-<del class="diffchange diffchange-inline">planr </del>shutter, rubberized-cloth, horizontal-travel type.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Shutter: focal-<ins class="diffchange diffchange-inline">plane </ins>shutter, rubberized-cloth, horizontal-travel type.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Shutter speed:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Shutter speed:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 500 models: 1s-1/500s and B</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 500 models: 1s-1/500s and B</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 1000 models: 1s-1/1000s and B</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 1000 models: 1s-1/1000s and B</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 2000 DTL: 1s-1/2000s and B</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** 2000 DTL: 1s-1/2000s and B</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Flash Sync: X and FP, PC socket, X-speed 1/60th</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Meter:  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Meter:  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** TL models: square spot metering area, CdS, stop-down type.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** TL models: square spot metering area, CdS, stop-down type.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** DTL models: square spot metering area and whole-field averaging, three CdS cells, stop-down type.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>** DTL models: square spot metering area and whole-field averaging, three CdS cells, stop-down type.  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Film transport: lever wind, single or multi-stroke</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Self-timer: mechanical, lever-operated</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Lens mount: m42 with automatic diaphragm</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Lens mount: m42 with automatic diaphragm</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Battery: 1x1.5 volt cell battery</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Battery: 1x1.5 volt cell battery</div></td></tr>
</table>Livestockgeorgehttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=202025&oldid=prevLivestockgeorge at 19:38, 17 November 20202020-11-17T19:38:48Z<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 19:38, 17 November 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10" >Line 10:</td>
<td colspan="2" class="diff-lineno">Line 10:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. This is undeniably an exaggeration, but the top-of-the-line DTL models were excellent performers for the time.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. This is undeniably an exaggeration, but the top-of-the-line DTL models were excellent performers for the time.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Indeed, the DTL 1000 was innovative and technically impressive in offering two metering modes. It also offers all the features associated with a high-end consumer or semi-professional camera--save that some but not all cameras of this time would also offer wide-open metering, a feature that Mamiya would add in their later [[Mamiya DSX|SX models]]. Being based on the basic m42 mount originated by Contax and used most prominently by Pentax, the DTL lacks an interlock between the aperture ring and the meter, and could only meter with the aperture stopped down.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Indeed, the DTL 1000 was innovative and technically impressive in offering two metering modes. It also offers all the features associated with a high-end consumer or semi-professional camera--save that some but not all cameras of this time would also offer wide-open metering, a feature that Mamiya would add in their later [[Mamiya DSX <ins class="diffchange diffchange-inline">1000</ins>|SX models]]. Being based on the basic m42 mount originated by Contax and used most prominently by Pentax, the DTL lacks an interlock between the aperture ring and the meter, and could only meter with the aperture stopped down.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The models are:</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The models are:</div></td></tr>
</table>Livestockgeorgehttp://camera-wiki.org/index.php?title=Mamiya/Sekor_TL/DTL_series&diff=202024&oldid=prevLivestockgeorge at 19:35, 17 November 20202020-11-17T19:35:37Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 19:35, 17 November 2020</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l8" >Line 8:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. <del class="diffchange diffchange-inline">While this </del>is an exaggeration, the top-of-the-line DTL models were excellent performers for the time, <del class="diffchange diffchange-inline">with </del>two metering modes <del class="diffchange diffchange-inline">and </del>all the features associated with a high-end consumer or semi-professional camera.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In the latter half of the 1960's, [[Mamiya]] sold a series of [[SLR]] cameras using the popular [[M42|42mm threaded lens mount]], built around a spot-metering capability (not center-weighted averaging). While in most ways similar to a vast number of contemporaries from the major manufacturers of the time, this spot-metering system made them fondly remembered by many who used them, and they were sometimes claimed (by Mamiya press materials) to be one of the most advanced cameras in the world. <ins class="diffchange diffchange-inline">This </ins>is <ins class="diffchange diffchange-inline">undeniably </ins>an exaggeration, <ins class="diffchange diffchange-inline">but </ins>the top-of-the-line DTL models were excellent performers for the time<ins class="diffchange diffchange-inline">. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Indeed</ins>, <ins class="diffchange diffchange-inline">the DTL 1000 was innovative and technically impressive in offering </ins>two metering modes<ins class="diffchange diffchange-inline">. It also offers </ins>all the features associated with a high-end consumer or semi-professional camera<ins class="diffchange diffchange-inline">--save that some but not all cameras of this time would also offer wide-open metering, a feature that Mamiya would add in their later [[Mamiya DSX|SX models]]</ins>. <ins class="diffchange diffchange-inline">Being based on the basic m42 mount originated by Contax and used most prominently by Pentax, the DTL lacks an interlock between the aperture ring and the meter, and could only meter with the aperture stopped down.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The models are:</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Mamiya/Sekor 500 TL</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Mamiya/Sekor 500 TL</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l18" >Line 18:</td>
<td colspan="2" class="diff-lineno">Line 22:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The TL models were introduced in 1966, the 500 and 1000 DTL in January 1968, and the 2000 DTL was introduced at Photokina 1968.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The TL models were introduced in 1966, the 500 and 1000 DTL in January 1968, and the 2000 DTL was introduced at Photokina 1968.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>These models may be grouped together, as they all share the same basic body; their differences are clearly reflected in their model designations. The numeral represents the highest shutter speed (1/500, 1/1000 or 1/2000 of a second); the letters TL or DTL signified '''Through''' the '''Lens''' or '''Dual''' '''Through''' the '''Lens''' [[light meter]]ing. The "500" models typically lack a [[self-timer]].</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>These models may be grouped together, as they all share the same basic body; their differences are clearly reflected in their model designations. The numeral represents the highest shutter speed (1/500, 1/1000 or 1/2000 of a second); the letters TL or DTL signified '''Through''' the '''Lens''' or '''Dual''' '''Through''' the '''Lens''' [[light meter]]ing. The "500" models typically lack a [[self-timer]]<ins class="diffchange diffchange-inline">, and the TL models lack average metering</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The later DTL dual-metering models introduced a switch beside the lens mount which allowed the photographer to select between the averaging meter pattern and the "spot" meter (actually a square area <del class="diffchange diffchange-inline">marked </del>at the bottom of the viewfinder, <del class="diffchange diffchange-inline">where </del>the mirror <del class="diffchange diffchange-inline">is </del>semi-silvered to <del class="diffchange diffchange-inline">pass light through </del>to <del class="diffchange diffchange-inline">a CdS cell), with a viewfinder indication of </del>the mode selected. <del class="diffchange diffchange-inline">This </del>was a unique <del class="diffchange diffchange-inline">innovation </del>for its day <del class="diffchange diffchange-inline">which </del>was protected by U.S. Patent No. [http://pdfpiw.uspto.gov/.piw?Docid=3612703 3,612,703], filed February 29, 1968. Interestingly, the single metering mode offered by the TL models was the "spot" mode, not the averaging mode one might expect. Thus it was the Mamiya TL and not [[Pentax]] who implemented the original meaning of Pentax's [[Spotmatic]] brand.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">==Metering==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The later DTL dual-metering models introduced a switch beside the lens mount which allowed the photographer to select between the averaging meter pattern <ins class="diffchange diffchange-inline">(the entire frame, roughly unweighted) </ins>and the "spot" meter (actually a square area<ins class="diffchange diffchange-inline">) with a viewfinder indication of the mode selected. At the right hand of the viewfinder is a fairly diminutive needle with indicators etched into the focusing screen: a plus, a backwards C shape that surrounds the needle when the exposure is correct, and a minus. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The spot meter is actually a square zone </ins>at the bottom <ins class="diffchange diffchange-inline">center </ins>of the viewfinder, <ins class="diffchange diffchange-inline">marked by brackets and noticeably darker than the rest of the frame. This is because the CDS cell is inside </ins>the mirror <ins class="diffchange diffchange-inline">behind a </ins>semi-silvered <ins class="diffchange diffchange-inline">patch. The brackets indicate the approximate extent of this area more clearly. Inside this area is an "S" for spot metering, and just outside it on the right is an "A" for averaging. A small triangular flag points </ins>to <ins class="diffchange diffchange-inline">the selected mode so that the photographer does not even have </ins>to <ins class="diffchange diffchange-inline">touch </ins>the <ins class="diffchange diffchange-inline">switch to know what </ins>mode <ins class="diffchange diffchange-inline">is </ins>selected.  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The concept of having spot metering in an SLR </ins>was a unique <ins class="diffchange diffchange-inline">feature </ins>for its day<ins class="diffchange diffchange-inline">, and </ins>was protected by U.S. Patent No. [http://pdfpiw.uspto.gov/.piw?Docid=3612703 3,612,703], filed February 29, 1968. Interestingly, the single metering mode offered by the TL models was the "spot" mode, not the averaging mode one might expect. Thus it was the Mamiya TL and not [[Pentax]] who implemented the original meaning of Pentax's [[Spotmatic]] brand.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot is fairly well-defined and gives a reading that doesn't have much bleed-over from outside the indicated zone, though its spot is fairly large and with a 50mm lens it has a viewing angle somewhat larger than the 1 degree of most handheld spot meters such as those made popular by Pentax, Minolta et al. and used often with large format cameras. It remains however one of the earliest and cheapest cameras that a competent photographer can execute zone-system photography on with some degree of accuracy, though there are limitations inherent in roll film as compared to sheet film that limit the flexibility of the zone system. Ansel Adams' trilogy of textbooks on the subject of photography elaborate further on zone system photography on small and medium format. At any rate spot metering in an SLR is associated with high-end German cameras and its presence on the TL and DTL series and the followup SX series is rather exceptional, even if its execution is less precise than on some cameras.  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The spot is fairly well-defined and gives a reading that doesn't have much bleed-over from outside the indicated zone, though its spot is fairly large and with a 50mm lens it has a viewing angle somewhat larger than the 1 degree of most handheld spot meters such as those made popular by Pentax, Minolta et al. and used often with large format cameras. It remains however one of the earliest and cheapest cameras that a competent photographer can execute zone-system photography on with some degree of accuracy, though there are limitations inherent in roll film as compared to sheet film that limit the flexibility of the zone system. Ansel Adams' trilogy of textbooks on the subject of photography elaborate further on zone system photography on small and medium format. At any rate spot metering in an SLR is associated with high-end German cameras and its presence on the TL and DTL series and the followup SX series is rather exceptional, even if its execution is less precise than on some cameras.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>As <del class="diffchange diffchange-inline">with most other consumer SLRs of the era</del>, <del class="diffchange diffchange-inline">these cameras had no linkage between </del>the <del class="diffchange diffchange-inline">light </del>meter <del class="diffchange diffchange-inline">circuit and the f/stop selected; thus </del>the lens <del class="diffchange diffchange-inline">needed to be </del>stopped down to shooting aperture <del class="diffchange diffchange-inline">in order to take an accurate exposure reading</del>. But it may be less than obvious at first glance how one is intended to activate the meter on a TL/DTL body. Mamiya made an interesting choice to have the film-wind lever also double as the stop-down lever and meter switch. The user pulls the lever away from the body until it clicks; after which, pressing the lever inwards against spring pressure stops down the lens and activates the meter circuit. To put the camera away without risking accidentally draining the single 1.5v silver-oxide meter battery, one stows the wind lever in its "off" position by clicking the round cap atop its axis.  The switching mechanism is also unusual<del class="diffchange diffchange-inline">, </del>instead of <del class="diffchange diffchange-inline">typical contacts </del>the metal band around the battery is a loose fit until the wind lever is pushed inwards<del class="diffchange diffchange-inline">, at that point </del>the band <del class="diffchange diffchange-inline">tightens around </del>the battery to complete the circuit.  </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As <ins class="diffchange diffchange-inline">mentioned above</ins>, the meter <ins class="diffchange diffchange-inline">operates only when </ins>the lens <ins class="diffchange diffchange-inline">is </ins>stopped down to shooting aperture. But it may be less than obvious at first glance how one is intended to <ins class="diffchange diffchange-inline">stop down the lens and </ins>activate the meter on a TL/DTL body. Mamiya made an interesting choice to have the film-wind lever also double as the stop-down lever and meter switch. The user pulls the lever away from the body until it clicks; after which, pressing the lever inwards against spring pressure stops down the lens and activates the meter circuit. To put the camera away without risking accidentally draining the single 1.5v silver-oxide meter battery, one stows the wind lever in its "off" position by clicking the round cap atop its axis.  The switching mechanism is also unusual<ins class="diffchange diffchange-inline">: </ins>instead of <ins class="diffchange diffchange-inline">a fixed contact, </ins>the metal band around the battery is a loose fit until the wind lever is pushed inwards <ins class="diffchange diffchange-inline">and </ins>the band <ins class="diffchange diffchange-inline">is pressed in tight against </ins>the battery to complete the circuit<ins class="diffchange diffchange-inline">. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">==Lens mount==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The Mamiya/Sekor lenses are somewhat sought after today as having a fairly good reputation and being compatible with most m42 cameras. The camera itself uses the standard automatic-aperture variation of the m42 thread mount similar to that used on most [[Pentax Spotmatic]]s and many other cameras. An enormous variety of lenses fit this camera, though some do not and some can even become stuck. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The Pentax Takumar Super-Multi-Coated lenses introduced with the Spotmatic F are not recommended for the TL and DTL. At best some of them will not screw down completely, as the small pin on the outside rear face of the lens will catch on the trailing edge of one of the boltholes on the front of the camera, preventing it from being tightened further (though not preventing it from being unscrewed). Forcing it will damage the lens. At worst the pin can become trapped in the bolthole and trap the lens in an incompletely mounted position, rendering the camera useless and requiring extensive disassembly of lens and/or camera to remove it. While far from the only camera to have this problem the TL/DTL seems to be one whose construction makes bypassing this problem impossible, unlike on say, the Zenit E. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">There are other lenses which will not mount or which will damage the camera. A particularly nasty case is non-retrofocal wide-angles that are designed to be used with an SLR with the mirror locked up. These can make contact with and ruin the mirror</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Even by the SLR standards of their day, the TL and DTL models were at the large and heavy end of the spectrum. A 1000 DTL with its original 50mm f/1.4 lens weighs 1,077g (2 lb. 6 oz.) and measures 150 x 94 x 100 mm (W x H x D).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Even by the SLR standards of their day, the TL and DTL models were at the large and heavy end of the spectrum. A 1000 DTL with its original 50mm f/1.4 lens weighs 1,077g (2 lb. 6 oz.) and measures 150 x 94 x 100 mm (W x H x D).</div></td></tr>
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