LOMO OKS lens 50mm T2.0. Good lens from a movie camera Konvas (USSR, 1982) OST-19 bayonet, in good condition, no scratches, no fungus, no stains and dirt, clean the lens. Mechanics good condition. with special adapter can be installed to many mirrorless digital cameras such as BMPCC Blackmagic Panasonic Gh4 Samsung NX1 RED Arri,Sony end many more