Pentax Cosmicar 16mm f1.4 - f16 TV prime lens . C Mount . ( for C mount cine ) . Focus and iris work ( there are small fixing screws which I have tightened up , these are so they don`t move when the lens is mounted on a moving camera etc ..... 30 seconds to loosen them a half turn ) . Supplied without caps .  The optics are good , no optical fungus or scratches , and the external cosmetics are good . 3.5cm long when mounted on a camera  . Free UK P&P  264185