Difference between revisions of "Cosina CT-7"

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The '''Cosina CT-7''' also known as '''Cosina Computer CT7''' is a manual focus 35mm [[SLR]] from [[Cosina]]. It accepts [[K mount]] type lenses.   
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The '''Cosina CT-7''' also known as '''Cosina Computer CT7''' is a manual focus 35mm [[SLR]] from [[Cosina]], announced in 1980.<ref>It was the flagship model listed in a slate of Cosina introductions in the [https://books.google.com/books?id=C2tHd0-73sgC&lpg=PP1&pg=PA222#v=onepage&q&f=false April 1981 ''Popular Photography'', pg. 222]. Cosina began advertising in the [https://books.google.com/books?id=mcWWGkKHUiIC&lpg=PP1&vq=Cosina&pg=PA3#v=onepage&q&f=false May 1981 ''Popular Photography'', pg.3] stating: "in North America, Cosina equipment has been sold only under other brand names. But now … Cosina is establishing its own name in the USA and Canada." (Scans via [https://books.google.com/books Google Books].)</ref> It accepts [[K mount]] type lenses.   
  
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This cameras was also sold as the '''Quantaray RZ 800''' for the [[Ritz Camera]] shops in the North America, as well as the '''[[Petri]] GX-4'''.
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This camera was also sold as the '''Quantaray RZ 800''' for the [[Ritz Camera]] shops in the North America, as well as the '''[[Petri]] GX-4'''.
  
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It has a electromagnetic metal [[focal plane shutter]] with speeds from 8s to 1/1000 in automatic [[aperture priority]] mode, and 2s to 1/1000 with B in manual mode. Shutter speed is set by the up and down buttons on the shoulder area of the camera. [[Flash sync]] is at 1/100 a sec. The [[self-timer]] is electronic with a delay of approx 10 sec.  
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It has an electromagnetic metal [[focal plane shutter]] with speeds from 8s to 1/1000 in automatic [[aperture priority]] mode, and 2s to 1/1000 with B in manual mode. Shutter speed is set by the up and down buttons on the shoulder area of the camera. [[Flash sync]] is at 1/100 a sec. The [[self-timer]] is electronic with a delay of approx 10 sec.  
  
 
The CT-7 features a center-weighted, open-aperture [[TTL]] metering system with match-LED display (and over indicator). In manual mode the viewfinder's 11 shutter speed LED's aid in proper setting. A LT (Long Time) lamp is lit to signify a 2 to 8 sec. shutter speed in auto mode. The meter has a range of 2 to 19 [[EV]] at (ASA 100), and can be set for film speeds from 25 to 1600 ASA. The film transport uses a manual film advance lever and a rewind crank. A '''Cosina auto-winder''' accessory was also available for the camera. The CT-7 uses two 1.5v SR44 batteries.
 
The CT-7 features a center-weighted, open-aperture [[TTL]] metering system with match-LED display (and over indicator). In manual mode the viewfinder's 11 shutter speed LED's aid in proper setting. A LT (Long Time) lamp is lit to signify a 2 to 8 sec. shutter speed in auto mode. The meter has a range of 2 to 19 [[EV]] at (ASA 100), and can be set for film speeds from 25 to 1600 ASA. The film transport uses a manual film advance lever and a rewind crank. A '''Cosina auto-winder''' accessory was also available for the camera. The CT-7 uses two 1.5v SR44 batteries.
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A version of this camera designated the '''CT-7D'''  (or '''Computer CT7D''') was presented at the PMA 1981 show<ref>As reported in the [https://books.google.com/books?id=PGXK2l6zq5oC&lpg=PA70&ots=YqhFwYboRY&dq=%22Cosina%20CT-7D%22&pg=PA70#v=onepage&q=%22Cosina%20CT-7D%22&f=false July 1981 Popular Photography magazine, pg. 70] via [https://books.google.com/books Google Books].</ref> and includes a non-removable date/data imprinting back.
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==Notes==
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<references/>
  
 
==Links==
 
==Links==
 
* [http://www.butkus.org/chinon/cosina/cosina_ct-7/cosina_ct-7.htm Cosina CT-7 manual] at [http://www.orphancameras.com Mike Butkus' Orphan Cameras]
 
* [http://www.butkus.org/chinon/cosina/cosina_ct-7/cosina_ct-7.htm Cosina CT-7 manual] at [http://www.orphancameras.com Mike Butkus' Orphan Cameras]
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[[Category:Japanese 35mm SLR]] [[Category:Cosina]]
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* The CT-7 features [https://books.google.com/books?id=UWTtBplKGnUC&lpg=PA55&vq=Cosina&dq=Cosina&pg=PA55#v=onepage&q=Cosina%20CT-7&f=false advertised in the June 1981 Popular Photography, pg. 55], via [https://books.google.com/books Google Books]
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* The CT-7 [https://books.google.com/books?id=VU48j2-6OCEC&lpg=PA106&vq=Cosina&dq=Cosina&pg=PA103#v=onepage&q=Cosina%20CT7&f=false tested in the February 1982 Popular Photography, pg. 103], via [https://books.google.com/books Google Books]
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{{Flickr_image
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|image_source= https://www.flickr.com/photos/vagn49/7939872116/in/pool-camerawiki/
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|image=  https://live.staticflickr.com/8309/7939872116_ffcdcff7e8_w.jpg
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|image_align= left
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|image_text= Rebranded as Petri GX-4
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|image_by= Vagn1949
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|image_rights= nc
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}}
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[[Category:Japanese 35mm SLR]]
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[[Category:Cosina|CT-7]]
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[[Category:C|CT-7 Cosina]]
 
[[Category:K mount]]
 
[[Category:K mount]]

Latest revision as of 06:03, 16 February 2023

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4222936813_b13252c035.jpg
Cosina Computer CT 7
image by Luis Ant. Rivera (Image rights)

The Cosina CT-7 also known as Cosina Computer CT7 is a manual focus 35mm SLR from Cosina, announced in 1980.[1] It accepts K mount type lenses.

This camera was also sold as the Quantaray RZ 800 for the Ritz Camera shops in the North America, as well as the Petri GX-4.

It has an electromagnetic metal focal plane shutter with speeds from 8s to 1/1000 in automatic aperture priority mode, and 2s to 1/1000 with B in manual mode. Shutter speed is set by the up and down buttons on the shoulder area of the camera. Flash sync is at 1/100 a sec. The self-timer is electronic with a delay of approx 10 sec.

The CT-7 features a center-weighted, open-aperture TTL metering system with match-LED display (and over indicator). In manual mode the viewfinder's 11 shutter speed LED's aid in proper setting. A LT (Long Time) lamp is lit to signify a 2 to 8 sec. shutter speed in auto mode. The meter has a range of 2 to 19 EV at (ASA 100), and can be set for film speeds from 25 to 1600 ASA. The film transport uses a manual film advance lever and a rewind crank. A Cosina auto-winder accessory was also available for the camera. The CT-7 uses two 1.5v SR44 batteries.

A version of this camera designated the CT-7D (or Computer CT7D) was presented at the PMA 1981 show[2] and includes a non-removable date/data imprinting back.

Notes

  1. ↑ It was the flagship model listed in a slate of Cosina introductions in the April 1981 Popular Photography, pg. 222. Cosina began advertising in the May 1981 Popular Photography, pg.3 stating: "in North America, Cosina equipment has been sold only under other brand names. But now … Cosina is establishing its own name in the USA and Canada." (Scans via Google Books.)
  2. ↑ As reported in the July 1981 Popular Photography magazine, pg. 70 via Google Books.

Links

7939872116_ffcdcff7e8_w.jpg
Rebranded as Petri GX-4
image by Vagn1949 (Image rights)
Retrieved from "http://camera-wiki.org/index.php?title=Cosina_CT-7&oldid=221334"