A camera terminal where tables where camera operations are described are not required, and that continues thoroughly imaging a monitoring subject region as a complete system even when a portion of cameras shuts down due to a failure is provided.The present invention is a camera terminal 110A in a monitoring system for imaging a monitoring subject region by cooperatively operating multiple camera terminals, and is equipped with a camera 101A having a function to change an imaging region, a communicator 103A to transmit/receive information for identifying the imaging region to/from other camera terminals, and an adjustment unit 102 to determine a monitoring responsible region for its own camera terminal so as to is make proximate the monitoring responsible region for its own camera terminal to a monitoring responsible region for the other camera terminal or a boundary of the monitoring subject region without leaving any space, and for adjusting the imaging region for the camera 101A to image the entire monitoring responsible region.