Rangefinder Carl Zeiss Jena. Fits all Contax 35mm rangefinder film cameras such as: Contax I, II, IIa, III, IIIa. Will also fit Voigtlander rangefinder Bessa cameras with the Contax rf lens mount. This lens can also be used on Canon R. Camera’s with proper adapter that is not included. Can also be used on digital. Camera’s like: Olympus OM-D, Panasonic GX8, Panasonic GH-4, GH-5, Fuji X-Pro3, XE-2 and Fuji XT-4, Sony a5100, Alpha a6500 and full frame Sony A-7rIII with. Lens uses E39mm filters. Minimum focus distance is4 feet or 1.1 meter. 8/8.5 of 10. No dings or dents. Smooth and clean aperture blades with some lubrication on them. For a three element lens. Comes with lens caps included. Nice vintage Contax rf telephoto lens. I have more Zeiss lenses, Large Format cameras, Lenses and Accessories, Medium format cameras, Subminiature and Soft Focus Lenses.