4.5/135mm lens for Russian spy camera Zasada
This lens was used on rare Russian spy camera Zasada.
The lens has follow focus gear.
Diaphragm is here, but no aperture control ring - it is designed to be controlled from inside of a camera by a pin.
We've installed Canon EOS mount on it, and decided to not make aperture control since it will be quite complex.
Infinity focus is possible.
The lens has collector value, but can be used for actual shots, of course.