180mm · f/5.5
The Schneider-Kreuznach Tele-Xenar 180 mm f/5.5 is a pre-war telephoto lens for 6x6 SLRs, known for its compact telephoto design with a physical length of ~120mm. Optically, it uses a five-element, three-group formula capable of strong compression. Weaknesses include being uncoated and lacking filter threads. Build is all nickel-brass, heavy, with a manual aperture from f/5.5 to f/32. It suits collectors or users seeking a vintage telephoto for medium format, adaptable to M42 via extension tubes.