TSK
The acronym TSK is found on at least two different Japanese leaf shutters.
Contents
1930s or 1940s shutter
The first TSK shutter (5–250, B, T) appears on at least one Baby Germa made by Tōkyō Shashin Kōgaku Kōgyōsha, dating from the late 1930s or early 1940s.[1] In this case, TSK certainly stands for Tōkyō Shashin Kōgaku.
1950s shutter
The other TSK shutter is better known, and appears on various Japanese TLR cameras of the 1950s. All the examples observed have B, 1–200 speeds. Some have a self-timer and others don't.
As the Elbowflex and the Princeflex were sometimes fitted with a TSK shutter and were made by Tōyō Seiki Kōgaku, it seems likely that TSK stands for Tōyō Seiki Kōgaku and that the shutters were made by that company. Further, the TSK shutter on the Alfaflex and Cosmoflex is marked not only TSK but also TOYO S.K.CO.; however, nothing is yet clearly known. The S. Luna shutter is certainly related.
Cameras fitted with TSK shutters
Listing of a camera here should not be taken to mean that all examples of the camera were fitted with TSK shutters.
- Alfaflex (no self-timer)
- Cosmoflex (no self-timer)
- Elbowflex (self-timer)
- Nikkenflex
- Princeflex (self-timer)
Notes
Bibliography
- Sugiyama, Kōichi (杉山浩一); Naoi, Hiroaki (直井浩明); Bullock, John R. The Collector's Guide to Japanese Cameras. 国産カメラ図鑑 (Kokusan kamera zukan). Tokyo: Asahi Sonorama, 1985. ISBN 4-257-03187-5.
Links
In Japanese:
- TSK shutter, with repair notes, at Handmade and Classic Camera
- Repair notes for the TSK shutter on a Cosmoflex, at Japan Family Camera
