Seikosha (shutter)
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 these cameras have a Seikosha shutter:
- Lord (Tōkyō Kōgaku) by Tōkyō Kōgaku
- First Roll
- First Center
- First Etui
- Semi First and First Six
- Auto Semi First
Notes
- ↑ Shunkan o torae-tsuzukeru shattā-ten, p. 9.
- ↑ 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)