The Pentax C60626 is a CCTV pinhole-type lens with auto-iris and manual focus. It displays about 56° horizontal angle of view on 1/2-inch CCD cameras. It can focus as close as about 1 foot. As the description would suggest this pinhole front lens element is a minuscule 12/100-inch or 3mm. Please note that the image through the straight pinhole lens will be inverted on the monitor due to the image being condensed within the internal optics. Correction can be made by simply inverting the camera. This is the C-mount of the lens. A CS-mount version is called the C60627.