Another version of the Industar-22.
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Factory: KOMZ (Kazan)
Formula: 4 elements in 3 groups
Glass: coated
Aperture markings: from 3,5 to 16
Resolution: 32 lines/mm center, 20 lines/mm corners
Weight: 104g (less than the previous lenses)
Princelle: K360
SovietCams: PT5770: 4 and 5 digit serials without date prefix
SovietCams: PT5775: 7 digit serials with year prefix
Fotoua: KOMZ type-1
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Photo 1: Serial #5021081 made in 1950 at Kazan.
It was mounted on an early Zorki-Zorki 1b serial #32870 (Jacques M. collection).
Certainly Jacques M. is wrong about the year of production of this pictured lens. It would be reasonable to think that #5021081 in fact was produced in 1955 (Lenny).
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