Digital Moments: Image making with an Industar 50-2 50mm f/3.5, an M42 variant of the M39 50mm f/3.5 'eagle eye'.
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The Industar 50-2 50mm f/3.5 is an M42 variant of the 50mm f/3.5 lens made by KMZ, which built the lens mainly as an Industar-50 M39 screw-mount standard lens for the Zorki rangefinder camera series. The series was first introduced in 1959 by KMZ.
The lens, derived from Zeiss's Tessar 4-element lens, was nicknamed the 'Eagle's eye'. The brand name Industar was used for all similar 4-element/3-group lens constructions of the whole Soviet photo-optical industry.
Olympus Pen E-P5, Industar 50-2 50mm f/3.5
