The Voigtlander Color-Skopar 20mm f3.5 SL is a tiny pancake-style wide angle lens designed for Nikon F mount film and digital SLR cameras. It covers full frame sensors, and its barely 3cm long- and while it is a manual focus lens, it has CPU contacts to provide full metering function on any Nikon F mount camera. In excellent condition, with smooth focusing, clean glass, and only the most minor cosmetic wear.