It has M42 Screw mount and can be used on any film SLR cameras with such a mount. Also can be used on a modern Digital camera via appropriate adapter.  Lens is in excellent optically and mechanic condition and it work without any issue.Optic is without damages, fungus, fog or separation.Focusing ring works excellent - smooth and precise.Aperture blades work excellent.Visually in excellent condition.  It is a very popular portrait soviet Lens. Lens has an optical design of a famous Carl Zeiss Sonnar 85 mm 2.0  lens. With the adapter ring the lens can be used on all Nikon SLRs