Mir-1B 37mm F2.8 M42
It is a Russian lens. Mir-1B is a difficult objective. It has great potential but requires good technique and a little luck. Certainly teaches patience. The lens itself is very well built. All metal finish, the paint quality and robust construction. The picture quality is good. The lens produces a very lively colors with great contrast. The lens is very small. Perfect for outdoor sessions photography and architecture. In portrait photography is excellent for the black and white photos. Focus Min(cm) - 70 Aperture Max - 2.8 Aperture Min. - 16 Filter Size (mm) - 49 Number of baldes - 10 Little curiosity about the Soviet lenses and serial numbers: "000xxxxxx factory test (study) models (prototypes etc) modeles d'études d'usine (prototypes etc..) 00xxxxxx preseries models reserved for members of the communist party and "VIPs" (reservés aux membres du parti communist et haut responsables en pré-série) 0xxxxxx reserved for factory syndicat leaders (réservé...