What Is C-Mount?
C mount is a type of lens commonly used in 16mm films CCTV cameras, microscopes et cetera. C mounts have been made mainly for 8mm and 16mm film formats 1/3", 1/2", 2/3", 1", and 4/3" videos. It was created by Bell and Howell for 70 cine cameras.
C mount comes handy in CCTV cameras as it can capture images beyond 40ft, it supports changes in technology and is very effective indoors.