RARE JUPITER-6 f 2.8/180 Soviet KMZ M42 lens Zeiss Sonnar copy #001783

Serial: # 001783. Soviet RARE JUPITER-6 2.8/180 KMZ M42. The lens was recalculated from the already famous Olympic Zeiss Sonnar 180mmf/2.8 (Olympic Carl Zeiss Sonnar Jena 180mm f/2.8 ), released in 1936 for the Olympics in Berlin.