MIR 1 Automat

This lens fit only Kiev 10 and Kiev 15 cameras.
Made by Arsenal
Focal length-37mm
Relative aperture - 1:2.8/22
Angle of view - 50 degree
Diaphragm is automatic -from 2.8 to 22
Resolution center 50 lines/mm
edges 23 lines/mm
Screw for filters - M52x0.75
Focusing, m: 0.24 to infinite
Weight 0.226 kg
Price in 1980 - 70 rubles(confirmed).
Lens came with sun hood, front and back cup, manuals, foam made box.