JUPITER-8 50 mm f/2 M39 Mount Photo Lens for Leica LM. Lens mount: M39 - mount LM. The Jupiter-8 50 mm f/ 2 (Russian: "?????? ") is a fast standard prime lens with a single-layer chemical coating for cameras with the m39 Leica Screw Mount (LSM) and the Contax I-III system (CRM). It was also produced in a bayonet variant for Kiev rangefinder cameras.
Lens are in working condition. The focus and aperture change smoothly. The lens is in good condition! Glass is clean, without fungus.First year of production : 1968. Optical design : 6 elements in 3 groups. Analog Carl Zeiss Sonnar 1:2/5 cm.
Real focal length: 52 mm. Resolution (0 mm/10 mm/20 mm). Resolution according to the technical specifications (centre/edge):30/14 lines/mm. Coefficient of transparency: 0.81.