We have several NEW Computar 12.5-75mm/F1.2 manual CCTV zoom lenses for sale. These high quality lenses are 2/3" format with c-mount and have 55mm threaded openings for filters and/or close-up diopters. These lenses also include custom brass removable/adjustable ring gears for using motors to automatically control aperture, zoom and focus from software. The ring gears are easy to remove but we can remove them for you if needed. Thanks