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DESCRIPTION : Jupiter-8 P 50mm f / 2 - aperture standard lens with a fixed focal length and a single layer of chemically-coated for cameras with threaded connections M39 Leica Screw Mount (LSM).
The actual focal length: 52.49 mm Angle of view - 45 ° The front vertex focal length: -49.60 mm Back vertex focal length: 27.75 mm The distance from the first to the last surface: 31.74 mm Light diameter of the first surface - 29.0 mm Light diameter of the last surface - 22.0 mm Resolution (0 mm / 10 mm / 20 mm): 39/29/24 lines / mm Resolution of TU (center / edge): 30/14 lines / mm Light transmission coefficient: 0.81 Geometric vignetting: 56% If service these lenses properly it is possible to make a good money on the resale!