SERVICED! Industar-61 L/D 55 mm F/2.8, USSR Objektiv für Panasonyc, Olympus Micro 4/3
Industar-61 L/D 55mm F/2.8, USSR Lens For Panasonyc, Olympus Micro 4/3 ! It was available in the M39 lens mount, or "Leica thread mount". It is a copy of the Carl Zeiss Tessar 50mm f2.8. Focal length: 55mm.