From the album: Kiev: The legend in Your Hands
Kievs (Contaxes) have very complicated but precise rangefinder. It is coupled to the rotating bayonet mount and allows to focus precisely. The rangefinder base (distance between two windows) is 90mm that is long enough to focus with the tele-objective Jupiter-11 (Sonnar) 135/4. I tried here to reproduce the whole complexity of the rangefinder.