Black varnish Soviet mirror Jupiter-9 2/85mm LZOS lens with screw mount M42 #5
It is a copy of the prewar Carl Zeiss Sonnar 85mm f2. Lens mount: M42. Focal length: 85mm. Relative aperture: 1:2. (Adapter not included). A great portrait lens ! Filter mount: M49x0.75. Scale of diaphragms: from 2 to 16.