Difference between revisions of "Semi Dymos"

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{{Japanese Semi prewar
 
{{Japanese Semi prewar
|image=[http://www.flickr.com/photos/rebollo_fr/313240228/in/pool-camerapedia/ http://static.flickr.com/109/313240228_878e7df8c1_m_d.jpg]<br />''Extract of a Semi Dymos leaflet. {{public domain}}''
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|image=[http://www.flickr.com/photos/camerawiki/47758493561/in/pool-camerawiki/ https://live.staticflickr.com/65535/47758493561_a02b48f2fd_m_d.jpg]<br />''Extract of a Semi Dymos leaflet. {{public domain Japan old}}''
 
}}
 
}}
The '''Semi Dymos''' (セミダイモス) is a [[Japanese 4.5x6 folders|Japanese 4.5&times;6 folder]], sold by [[Seibi-Dō]] between 1935 and 1937. It is believed that the [[Hansa Semi Rollette]] is a name variant of this camera (see the arguments in the corresponding page).
+
The '''Semi Dymos''' (セミダイモス) is a [[Japanese 4.5×6 folders|Japanese 4.5×6 folder]], sold by [[Seibidō]]<REF> Advertisements reproduced in {{Kokusan}}, p.78. </REF> between 1935 and 1937. The manufacturer is not known for sure, though at least one recent source says that the camera was made by [[Mori]].<REF> Tanaka, p.132 of ''Nigan-refu no hanashi (zenpen)''. </REF> (The latter company was perhaps also involved in the production of the [[Light (shutter)|Light shutter]] sometimes mounted on the camera.)
 +
 
 +
The [[Hansa Semi Rollette]] and the original [[Semi Rosen]] are certainly name variants of the Semi Dymos (see the discussion in the corresponding pages).
  
 
== General description ==
 
== General description ==
The Semi Dymos is an [[Ikonta]] copy with a folding optical finder and a key at the bottom right to advance the film. The back is hinged to the left and the back latch is covered by a leather handle.
+
The Semi Dymos is an [[Ikonta]] copy, with the typical Ikonta struts. There is a folding optical finder in the middle of the top plate. Its front part folds above the back one and it is perhaps of the Newton type. The folding bed release is on the right of the viewfinder and the film advance key is at the bottom right — as seen by the photographer holding the camera horizontally. The back is hinged to the left and the back latch is covered by a leather handle. The brand name ''Dymos'' is embossed in the front leather in cursive style: the "D" is very large and contains the rest of the letters.
 
 
There is a ''Dymos'' logo embossed in the front leather in handwritten style, the "D" is very large and contains the rest of the letters.
 
  
 
== The Semi Dymos A to F ==
 
== The Semi Dymos A to F ==
The '''original Semi Dymos''', released in 1935<REF> Date: {{Kokusan}}, p.&nbsp;337. </REF>, has no body release and has two red windows in the back, protected by a cover that is certainly retracted by turning a knob.
+
The '''original Semi Dymos''', released in 1935, has no body release and has two red windows in the back, protected by a cover that is retracted by turning a thumbwheel. The word ''PAT'' is sometimes engraved on the metal casing surrounding the red windows,<REF> Example observed in an online auction. </REF> certainly indicating that the mechanism was patented. The exact same mechanism is found on the Reex, which was perhaps related. Only one surviving example of the original Semi Dymos has been observed so far.<REF> Example observed in an online auction. </REF>
  
In an advertisement dated January 1936<REF> Published in ''Ars Camera'', reproduced in {{Kokusan}}, p.&nbsp;78. </REF>, the following variants are offered:
+
The camera appears as a new model in an advertisement in {{ACA}} June 1935.<REF name="Kokusan 337"> {{Kokusan}}, p.337. </REF> The following versions are listed in a January 1936 advertisement:<REF> Advertisement in {{AR}} January 1936, reproduced in {{Kokusan}}, p.78. </REF>
 
* '''Model A''' (A號): Radionar f/6.3 lens, [[Rulex]] shutter ({{yen|49|1936}});
 
* '''Model A''' (A號): Radionar f/6.3 lens, [[Rulex]] shutter ({{yen|49|1936}});
* '''Model B''' (B號): Radionar f/4.5 lens, Light shutter ({{yen|55|1936}});
+
* '''Model B''' (B號): Radionar f/4.5 lens, [[Light (shutter)|Light]] shutter ({{yen|55|1936}});
* '''Model C''' (C號): Lausar<REF> Inferred from the ''katakana'' ローザー. </REF> f/4.5 lens, Light shutter ({{yen|59|1936}}).
+
* '''Model C''' (C號): Lausar f/4.5 lens, [[Light (shutter)|Light]] shutter ({{yen|59|1936}}).
It is supposed that the Rulex shutter was the less expensive Rulex D variant. It is possible that the Light shutter was made by [[Ōhashi|Ōhashi Kōki Seisakusho]], a company that is known to have used this trademark and to have mounted Light B and Light C shutters on the [[Roll Light Ref]].
 
  
It seems that in some advertisements the range was as follows<REF> {{Kokusan}}, p.&nbsp;337. </REF>:
+
Some advertisements may have shown the following range instead:<REF name="Kokusan 337" />
 
* Model A: Radionar f/6.3, [[Rulex]];
 
* Model A: Radionar f/6.3, [[Rulex]];
* Model B: Dymos f/4.5, Light;
+
* Model B: Dymos f/4.5, [[Light (shutter)|Light]];
* Model C: Radionar f/4.5, Light;
+
* Model C: Radionar f/4.5, [[Light (shutter)|Light]];
* '''Model D''': Lausar f/4.5, Light.
+
* '''Model D''': Lausar f/4.5, [[Light (shutter)|Light]].
  
In mid-1936, the A, B, C, D variants were replaced by the Models E and F. Advertisements dated May<REF> [http://www.remus.dti.ne.jp/~inasan99/camera/daimos.html Advertisement] published in ''Camera Art'', reproduced in [http://www.remus.dti.ne.jp/~inasan99/camera/nostalgic_camera.html Nostalgic Camera] by Toshio Inamura. </REF> and December<REF> Published in ''Asahi Camera'', reproduced in {{Kokusan}}, p.&nbsp;78. </REF> 1936 describe the following variants:
+
In mid-1936, the A, B, C, D models were replaced by the models E and F. In advertisements dated May and December 1936, they are described as follows:<REF> [http://www.remus.dti.ne.jp/~inasan99/camera/daimos.html Advertisement] in ''[[Camera Art]]'' May 1936, reproduced in [http://www.remus.dti.ne.jp/~inasan99/camera/nostalgic_camera.html Nostalgic Camera] by Toshio Inamura; advertisement in {{ACA}} December 1936, reproduced in {{Kokusan}}, p.78. </REF>
* '''Model E''' (E號): Radionar f/4.5 lens, 5&ndash;250 speeds ({{yen|60|1936}} &mdash; case &yen;5 extra);
+
* '''Model E''' (E號): Radionar f/4.5 lens, 5–250 speeds ({{yen|60|1936}} case ¥5 extra);
* '''Model F''' (F號): Lausar f/4.5 lens, 5&ndash;250 speeds ({{yen|63|1936}}).
+
* '''Model F''' (F號): Lausar f/4.5 lens, 5–250 speeds ({{yen|63|1936}}).
The shutter name is not mentioned, but it is believed to be the Light B mentioned in a later document (see below).
+
The shutter name is not given, but it is probably the [[Light (shutter)|Light B]] mentioned in a later document (see below).
  
 
== The Semi Dymos II ==
 
== The Semi Dymos II ==
The '''Semi Dymos II''' appeared at the beginning of 1937.<REF> Date: {{Kokusan}}, p.&nbsp;337. </REF> It has a curious system to control film advance by the ear: the film numbers are made audible by a device, whose details are unknown, looking like a square plate on the camera's back. This device is called "talkie numbers" (トーキーナンバー) in the advertisements, and it is emphasized that it is convenient to take pictures in a dark place. There is still a red window at the extreme left of the back, probably to set the first exposure.
+
The '''Semi Dymos II''' appeared at the beginning of 1937. It has a special device for advance control, called "talkie numbers" (トーキーナンバー) in the advertisements, which emphasize its convenience to take pictures in a dark place. The device is exactly the same as on the original [[Semi Rosen]] sold by [[Ōsawa|Ōsawa Shōkai]] at the same time, which was certainly a name variant (see the picture in the page on the [[Semi Rosen]]). It consists of a manual exposure counter contained under a square casing at the bottom left of the back. The frame number is displayed in a small round window, and the device makes a sound each time the next exposure is attained. There is a small lever next to the round window, perhaps used to reset the counter, and a triangular logo on the leather covering. There is still a red window at the extreme left of the back, protected by a vertically sliding cover, used to set the position of the first exposure.
  
An advertisement dated May 1937<REF> Published in ''Asahi Camera'', reproduced in {{Kokusan}}, p.&nbsp;78. </REF> offers the camera in two variants:
+
The Semi Dymos II first appeared in advertisements dated March 1937.<REF name="Kokusan 337" /> The May 1937 advertisement in {{ACA}} says that the model 1 (1號型) was still available, and lists the following two versions of the Semi Dymos II:<REF> Advertisement in {{ACA}}, reproduced in {{Kokusan}}, p.78. </REF>
* '''Model EII''' (EⅡ號型): Radionar f/4.5 lens, 5&ndash;250 speeds ({{yen|62|1937}} &mdash; case &yen;4.50 extra);
+
* '''Model EII''' (EⅡ號型): Radionar f/4.5 lens, 5–250 speeds ({{yen|62|1937}} case ¥4.50 extra);
* '''Model FII''' (FⅡ號型): Lausar f/4.5 lens, 5&ndash;250 speeds ({{yen|65|1937}}).
+
* '''Model FII''' (FⅡ號型): Lausar f/4.5 lens, 5–250 speeds ({{yen|65|1937}}).
  
The model 1 is mentioned as still available.
+
No surviving example has been observed so far.
  
 
== The Semi Dymos FV ==
 
== The Semi Dymos FV ==
<div class="floatright plainlinks" style="text-align: center;">
+
{| class="plainlinks floatright" width=250px style="text-align: center;"
[http://www.flickr.com/photos/rebollo_fr/313054641/in/pool-camerapedia/ http://static.flickr.com/122/313054641_a5a18cd90f_m_d.jpg]
+
|| [http://www.flickr.com/photos/camerawiki/47758519221/in/pool-camerawiki/ https://live.staticflickr.com/65535/47758519221_6dd3d70209_m_d.jpg]
<br />''Semi Dymos leaflet. {{public domain}}''
+
|-
</div>
+
|| ''Semi Dymos leaflet. {{Flickr translated}} {{public domain Japan old}}''
The '''Semi Dymos FV''' appeared at the end of 1937.<REF> Date: {{Kokusan}}, p.&nbsp;337. </REF> It is like the FII with a body release. An advertisement dated October 1937<REF> Published in ''Asahi Camera'', reproduced in {{Kokusan}}, p.&nbsp;78. </REF> offers this model for {{yen|70|1937}} (case &yen;5 extra). {{Kokusan}} mentions advertisements until the very beginning of 1938.<REF> {{Kokusan}}, p.&nbsp;337. </REF>
+
|}
 +
The '''Semi Dymos FV''', released at the end of 1937, is similar to the FII with a body release added to the left of the viewfinder.
 +
 
 +
The camera appears in an advertisement in {{ACA}} October 1937, where it is offered for {{yen|70|1937}} (case ¥5 extra).<REF> Advertisement in {{ACA}}, reproduced in {{Kokusan}}, p.78. </REF> The document mentions the "talkie numbers", and lists the camera with a Lausar f/4.5 lens and 5–250 speeds. The shutter is certainly the same that was used on the models E and F, and was not originally designed for a body release. In the picture, it is rotated to the left by more than 90 degrees, in order to connect the release lever with the body release linkage. As a consequence, the aperture scale and ''Light'' marking appear to the right, whereas they were at the bottom on previous models.
  
An undated leaflet<REF> Undated leaflet for the [[Victory]], Semi Dymos, [[Reex]], [[Japanese 3&times;4 and 4&times;4 pseudo TLR cameras|Baby Ref]], [[Union Ref and Hansa Rollette Ref|Union Ref]] and [[Baby Chrome]]. </REF> pictured in this page shows a model simply called "Semi Dymos". It looks exactly like the FV but the leaflet does not mention the talkie numbers and it is perhaps a later model.
+
The Semi Dymos FV is also featured in the new products column of the November 1937 issue of {{ACA}}, and the last advertisement reported so far is dated January 1938.<REF> {{Kokusan}}, p.337. </REF>
  
The lens is a Rosen Anastigmat 75mm f/4.5 and the shutter is a Light B giving T, B, 5&ndash;250 speeds. As for the FV, the shutter is placed on its side in order to connect the release lever with the body release rod. It seems that the Light B was not originally designed for a body release, this is why it is believed that it was the same shutter used on the models E and F. The shutter plate is black, the aperture scale and the ''Light'' marking should be to the bottom but they appear to the right.
+
The undated leaflet reproduced in this page shows a model simply called "Semi Dymos".<REF> Undated leaflet for the [[Victory]], Semi Dymos, [[Reex]], [[Japanese 3×4 and 4×4 pseudo TLR|Baby Ref]], [[Union Ref and Hansa Rollette Ref|Union Ref]] and [[Baby Chrome]], published by an unknown company. </REF> It looks exactly like the FV but the document does not mention the talkie numbers. The lens is described as a Rosen (ローゼン) Anastigmat 75mm f/4.5 and the shutter as a [[Light (shutter)|Light B]] (T, B, 5–250). The shutter looks the same as on the FV.
  
 
== Notes ==
 
== Notes ==
Line 53: Line 55:
  
 
== Bibliography ==
 
== Bibliography ==
* {{Showa10}} Items 138&ndash;9.
+
* Anonymous company. Leaflet for the [[Victory]], Semi Dymos, [[Reex]], [[Japanese 3×4 and 4×4 pseudo TLR|Baby Ref]], [[Union Ref and Hansa Rollette Ref|Union Ref]] and [[Baby Chrome]]. Date not indicated. Document reproduced in [https://www.flickr.com/photos/camerawiki/albums/72157712042809812/ this Flickr album] by Rebollo_fr.
* Leaflet for the [[Victory]], Semi Dymos, [[Reex]], [[Japanese 3&times;4 and 4&times;4 pseudo TLR cameras|Baby Ref]], [[Union Ref and Hansa Rollette Ref|Union Ref]] and [[Baby Chrome]], published by an unknown company. Date not indicated.
+
* {{Showa10}} Items 138–9.
 +
* Inoue, Mitsuo (井上光朗). "Shashin renzu no yoake. Renzu-ya Funsenki" (写真レンズの夜明け・レンズ屋奮戦記, Dawn of the photographic lens — Fierce war tales between lens shops). {{KKS014}} Pp.128–132. (The Lausar lens and [[Light (shutter)|Light shutter]] pictured on p.130 probably belong to a Semi Dymos.)
 +
* Tanaka Masao (田中政雄). ''Nigan-refu no hanashi (zenpen)'' (二眼レフのはなし[前編], TLR stories [first part]). Gendai Kamera Shinsho (現代カメラ新書) no.68. Tokyo: Asahi Sonorama, 1980. No ISBN number. P.132. (Attributes the Semi Dymos to Mori.)
 +
The Semi Dymos is not listed in {{SUG}}.
  
 
== Links ==
 
== Links ==
 
In Japanese:
 
In Japanese:
* [http://www.remus.dti.ne.jp/~inasan99/camera/daimos.html Advertisement for the Semi Dymos and Venus], published in the May 1936 issue of ''Camera Art'', reproduced in [http://www.remus.dti.ne.jp/~inasan99/camera/nostalgic_camera.html Nostalgic Camera] by Toshio Inamura.
+
* [http://www.remus.dti.ne.jp/~inasan99/camera/daimos.html Advertisement for the Semi Dymos and Venus], published in the May 1936 issue of ''[[Camera Art]],'' reproduced in [http://www.remus.dti.ne.jp/~inasan99/camera/nostalgic_camera.html Nostalgic Camera] by Toshio Inamura.
  
 
[[Category: Japanese 4.5x6 viewfinder folding|Dymos, Semi]]
 
[[Category: Japanese 4.5x6 viewfinder folding|Dymos, Semi]]
 
[[Category: S]]
 
[[Category: S]]
 
[[Category: D|Dymos, Semi]]
 
[[Category: D|Dymos, Semi]]
 +
[[Category: 1935]]

Latest revision as of 08:10, 7 December 2019

Japanese Semi (4.5×6)
Prewar and wartime models (edit)
folding
Semi Ace | Semi Adler | Adler III | Adler A | Adler B | Adler C | Semi Ako | Ami | Bakyna | Semi Chrome | Semi Clover | Collex | Semi Condor | Semi Dymos | Semi Elega | Semi First | Auto Semi First | Baby Semi First | Gaica | Semi Gelto | Semi Germa | Hansa Semi Rollette | Heil | Hokoku | Hope | Kadera | Kankyu | Kelly | Kiko Semi | Semi Kinka | Semi Konter | Semi Kreis | Semi Kulax | Semi Lead | Semi Leotax | Semi Lester | Loyal | Semi Lucky | Semi Lyra | Semi Makinet | Semi Metax | Semi Minolta (I) and II | Auto Semi Minolta | Semi Miss | Mizuho | Semi Mulber | Semi National | New Gold | Okaco | Oko Semi | Semi Olympus | Semi Olympus II | Semi Osamo | Semi Pearl | Primo | Semi Prince | Semi Proud | Semi Prux | Roavic | Semi Rody | Rondex | Semi Rosen | Semi Rotte | Seica | Seves | Semi Shiks | Sintax | Semi Sixteenth | Semi Solon | Semi Sport | Star Semi | Semi-Tex | Tsubasa Kiko Three | Tsubasa Nettar | Tsubasa Super Semi | Ugein | Vester-Lette | Victor | Waltax | Wester | Zeitax
collapsible
Semi Kinsi | Lord | Lyrax | Nippon | New Olympic | Semi Olympic | Semi Renky | Auto Victor | Well Super
stereo
Sun Stereo
unknown
Semi Elka | Semi Keef | Napoleon
Postwar models ->
Japanese SLR, TLR, pseudo TLR and stereo ->
Japanese 3×4, 4×4, 4×5, 4×6.5, 6×6 and 6×9 ->

The Semi Dymos (セミダイモス) is a Japanese 4.5×6 folder, sold by Seibidō[1] between 1935 and 1937. The manufacturer is not known for sure, though at least one recent source says that the camera was made by Mori.[2] (The latter company was perhaps also involved in the production of the Light shutter sometimes mounted on the camera.)

The Hansa Semi Rollette and the original Semi Rosen are certainly name variants of the Semi Dymos (see the discussion in the corresponding pages).

General description

The Semi Dymos is an Ikonta copy, with the typical Ikonta struts. There is a folding optical finder in the middle of the top plate. Its front part folds above the back one and it is perhaps of the Newton type. The folding bed release is on the right of the viewfinder and the film advance key is at the bottom right — as seen by the photographer holding the camera horizontally. The back is hinged to the left and the back latch is covered by a leather handle. The brand name Dymos is embossed in the front leather in cursive style: the "D" is very large and contains the rest of the letters.

The Semi Dymos A to F

The original Semi Dymos, released in 1935, has no body release and has two red windows in the back, protected by a cover that is retracted by turning a thumbwheel. The word PAT is sometimes engraved on the metal casing surrounding the red windows,[3] certainly indicating that the mechanism was patented. The exact same mechanism is found on the Reex, which was perhaps related. Only one surviving example of the original Semi Dymos has been observed so far.[4]

The camera appears as a new model in an advertisement in Asahi Camera June 1935.[5] The following versions are listed in a January 1936 advertisement:[6]

  • Model A (A號): Radionar f/6.3 lens, Rulex shutter (¥49);
  • Model B (B號): Radionar f/4.5 lens, Light shutter (¥55);
  • Model C (C號): Lausar f/4.5 lens, Light shutter (¥59).

Some advertisements may have shown the following range instead:[5]

  • Model A: Radionar f/6.3, Rulex;
  • Model B: Dymos f/4.5, Light;
  • Model C: Radionar f/4.5, Light;
  • Model D: Lausar f/4.5, Light.

In mid-1936, the A, B, C, D models were replaced by the models E and F. In advertisements dated May and December 1936, they are described as follows:[7]

  • Model E (E號): Radionar f/4.5 lens, 5–250 speeds (¥60 — case ¥5 extra);
  • Model F (F號): Lausar f/4.5 lens, 5–250 speeds (¥63).

The shutter name is not given, but it is probably the Light B mentioned in a later document (see below).

The Semi Dymos II

The Semi Dymos II appeared at the beginning of 1937. It has a special device for advance control, called "talkie numbers" (トーキーナンバー) in the advertisements, which emphasize its convenience to take pictures in a dark place. The device is exactly the same as on the original Semi Rosen sold by Ōsawa Shōkai at the same time, which was certainly a name variant (see the picture in the page on the Semi Rosen). It consists of a manual exposure counter contained under a square casing at the bottom left of the back. The frame number is displayed in a small round window, and the device makes a sound each time the next exposure is attained. There is a small lever next to the round window, perhaps used to reset the counter, and a triangular logo on the leather covering. There is still a red window at the extreme left of the back, protected by a vertically sliding cover, used to set the position of the first exposure.

The Semi Dymos II first appeared in advertisements dated March 1937.[5] The May 1937 advertisement in Asahi Camera says that the model 1 (1號型) was still available, and lists the following two versions of the Semi Dymos II:[8]

  • Model EII (EⅡ號型): Radionar f/4.5 lens, 5–250 speeds (¥62 — case ¥4.50 extra);
  • Model FII (FⅡ號型): Lausar f/4.5 lens, 5–250 speeds (¥65).

No surviving example has been observed so far.

The Semi Dymos FV

The Semi Dymos FV, released at the end of 1937, is similar to the FII with a body release added to the left of the viewfinder.

The camera appears in an advertisement in Asahi Camera October 1937, where it is offered for ¥70 (case ¥5 extra).[9] The document mentions the "talkie numbers", and lists the camera with a Lausar f/4.5 lens and 5–250 speeds. The shutter is certainly the same that was used on the models E and F, and was not originally designed for a body release. In the picture, it is rotated to the left by more than 90 degrees, in order to connect the release lever with the body release linkage. As a consequence, the aperture scale and Light marking appear to the right, whereas they were at the bottom on previous models.

The Semi Dymos FV is also featured in the new products column of the November 1937 issue of Asahi Camera, and the last advertisement reported so far is dated January 1938.[10]

The undated leaflet reproduced in this page shows a model simply called "Semi Dymos".[11] It looks exactly like the FV but the document does not mention the talkie numbers. The lens is described as a Rosen (ローゼン) Anastigmat 75mm f/4.5 and the shutter as a Light B (T, B, 5–250). The shutter looks the same as on the FV.

Notes

  1. Advertisements reproduced in Kokusan kamera no rekishi, p.78.
  2. Tanaka, p.132 of Nigan-refu no hanashi (zenpen).
  3. Example observed in an online auction.
  4. Example observed in an online auction.
  5. 5.0 5.1 5.2 Kokusan kamera no rekishi, p.337.
  6. Advertisement in Ars Camera January 1936, reproduced in Kokusan kamera no rekishi, p.78.
  7. Advertisement in Camera Art May 1936, reproduced in Nostalgic Camera by Toshio Inamura; advertisement in Asahi Camera December 1936, reproduced in Kokusan kamera no rekishi, p.78.
  8. Advertisement in Asahi Camera, reproduced in Kokusan kamera no rekishi, p.78.
  9. Advertisement in Asahi Camera, reproduced in Kokusan kamera no rekishi, p.78.
  10. Kokusan kamera no rekishi, p.337.
  11. Undated leaflet for the Victory, Semi Dymos, Reex, Baby Ref, Union Ref and Baby Chrome, published by an unknown company.

Bibliography

The Semi Dymos is not listed in Sugiyama.

Links

In Japanese: