TSK
TSK is a name on some Japanese leaf shutters of the 1950s. All the examples observed have B, 1–200 speeds.
As the Elbow flex 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 Cosmoflex[1] is marked not only TSK but also what appears to be TOYO S.K.CO.; however, nothing is yet clearly known.
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.
Notes
- ↑ The example shown at the Cosmoflex page within [http://rd2h-ari.hp.infoseek.co.jp/ Japan Family Camera.
