A specific style of mount used to connect a lens to a camera body. This style is the standard in the CCTV industry. Specifically it is 1” in diameter with 32 threads per inch, of the 16 mm format.
A type of lens mount that has a flange back distance of 17.5mm. "C" mount lenses have a longer back focal distance than "CS" mount lenses.
Type of screw-on mounting for CCTV Camera Lenses. C Mount lenses need an adapter ring when used with CS Mount camera (see CS Mount).