2KSM Russian 35mm movie camera
The camera consists of the following parts:
1- Camera with motor
2- additional motor, owner don't know how to mount it
3- single mags 5x120m + adapter plate
4- usual lenses 35; 50; 75.
5- 2 viewfinders
It is similar to PSK-29. It has 2 shutters - mirror and disc-shaped.
Two viewfinders can be mounted horizontally or vertically.
Left one - for focusing by film, like in PSK-29.
Right one - for focusing by ground glass from mirror shutter.
It has also device to control shutter (with shutter opening angle indicator).
The camera allows multiple exposure of the same frame.
Special feature is 6-positions speed selector, reversing clutch (to allow precise shutter rotation on 360 (+/-3) degrees.
Special friction clutches allow to reverse film movement without any additional switching.