Industar-22 Lens in Leica Threadmount
The Industar-22 design was "borrowed" from Leitz Elmar. It was an improved version of a prewar collapsible FED lens (also known as Industar-10).
The Industar-22 was a standard lens on the early Zorki cameras (Zorki, Zorki-S, some of Zorki-2S') and was also a popular enlarger lens in the USSR in the 60's.
Technical Characteristics
Focal length
50 mm
Aperture
1:3.5, settings from 3.5 to 16
Focusing
1 m - Infinity
Filter size
36 mm slip-on type
Optical registration (back focus)
28.8? 0.02 mm
No lenscap . The lens is shown mounted on a Leica IIIa (not included).