Pentax C90105 C Mount to CS Mount Adapter Ring - 20mm

The Pentax C90105 C mount to CS mount adapter ring adapts a C mount lens so that it can be used with a CCTV camera equipped with a CS lens mount. The 'mm' designation on the adapter denotes the distance the ring will add between the lens and the camera's imager. A CS mount lens cannot be used with a C mount camera.