Difference between revisions of "Seikosha (shutter)"

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The '''Seikosha''' is a Japanese leaf shutter in [[Shutter size|#0 size]], inspired by the German [[Compur]] and introduced in 1932 by Seikōsha, the manufacturing branch of [[Hattori|Hattori Tokei-ten]].<REF> ''Shunkan o torae-tsuzukeru shattā-ten'', p.&nbsp;9. </REF> It is sometimes called "Seikosha S", apparently because it is equipped with a self-timer and by analogy with the Compur-S. In an advertisement for the [[Lord (Tōkyō Kōgaku)|Lord]] by [[Tōkyō Kōgaku]]<REF> Advertisement published in the March 1938 issue of ''Asahi Camera'', reproduced in {{Kokusan}}, p.&nbsp;105. </REF> it is called S Seiko (Sセイコー).
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The '''Seikosha''' is a Japanese leaf shutter in [[Shutter size|#0 size]], inspired by the German [[Compur]] and introduced in 1932 by Seikōsha, the manufacturing branch of [[Hattori|Hattori Tokei-ten]].<REF> ''Shunkan o torae-tsuzukeru shattā-ten'', p.&nbsp;9. </REF> It was called "S&nbsp;Seiko" (Sセイコー) in some advertisements.<REF> Advertisement published in the March 1938 issue of ''[[Asahi Camera]],'' reproduced in {{Kokusan}}, p.&nbsp;105. </REF> Its range of speeds is T, B, 1, 2, 5, 10, 25, 50, 100, 250 and it has a self-timer.
  
== Variants and cameras equipped ==
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== Cameras equipped ==
This list is incomplete and not all the versions were concerned.
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This list is incomplete and not all the versions of the following cameras are concerned:
* T, B, 1, 2, 5, 10, 25, 50, 100, 250
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* [[Lord (Tōkyō Kōgaku)]] by [[Tōkyō Kōgaku]]
** [[Lord (Tōkyō Kōgaku)]] by [[Tōkyō Kōgaku]]
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* [[First Roll]]
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* [[First Center]]
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* [[First Etui]]
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* [[Semi First and First Six|Semi First and First Six]]
  
 
== Notes ==
 
== Notes ==

Revision as of 18:08, 2 May 2007

The Seikosha is a Japanese leaf shutter in #0 size, inspired by the German Compur and introduced in 1932 by Seikōsha, the manufacturing branch of Hattori Tokei-ten.[1] It was called "S Seiko" (Sセイコー) in some advertisements.[2] Its range of speeds is T, B, 1, 2, 5, 10, 25, 50, 100, 250 and it has a self-timer.

Cameras equipped

This list is incomplete and not all the versions of the following cameras are concerned:

Notes

  1. Shunkan o torae-tsuzukeru shattā-ten, p. 9.
  2. Advertisement published in the March 1938 issue of Asahi Camera, reproduced in Kokusan kamera no rekishi, p. 105.

Bibliography

  • Kamera no mekanizumu sono I: "Hai! Chīzu" Shunkan o torae-tsuzukeru shattā-ten (カメラのメカニズム・そのⅠ・「ハイ!チーズ」瞬間をとらえ続けるシャッター展, Camera mechanism, part 1 "Cheese!" Exhibition of instant taking shutters). Tokyo: JCII Camera Museum, 2002. (Exhibition catalogue, no ISBN number)