LOMO OKS1-40-1 2.5/40mm lens for Konvas, Kinor (OCT-19 mount)
This lens was made at LOMO in 1982 (#820498).
The lens has OCT-19 mount and fits 35mm film movie cameras like Konvs-2M, Kinor-35.
Can be used on other cameras if you have corresponding adapters.
Mechanical condition is fine - both aperture and focus ring rotate smoothly.
Glass is excellent. The lens has native follow focus gear with industry standard 32 pitch.
Weight is 610 g.