Remoto-controllable automatic diaphragm control device for use with CCTV camera

摘要

A remote-controllable automatic diaphragm control device for use with a CCTV camera permitting the diaphragm control to be changed over between an automatic diaphragm control mode in which a desired diaphragm control is achieved by utilizing a video signal supplied from a television camera and a remote diaphragm control mode in which the diaphragm is electrically adjustable to a desired diaphragm position entirely regardless of said video signal from the television camera, in a simple manner.