Jupiter-9 85 mm f/2 UdSSR Porträt Objektiv für Zenit, Pentax. M42 Halterung!
M42 mount. It is a copy of the prewar Carl Zeiss Sonnar 85mm f2. Lens mount: M42. Focal length: 85mm. (Adapter not included). A great portrait lens ! Filter mount: M49x0.75. Scale of diaphragms: from 2 to 16.