Abstract: A camera moving circuit senses movement of a subject and automatically initiates camera movement in the direction of movement by the subject. The circuit uses a plurality of memories, a switching stage, a plurality of adders and subtractors, and a stage for moving a camera. In operation, the circuit detects a signal corresponding to a difference obtained by comparing previous action of the subject with subsequent action of the subject, and drives a motor attachable to the camera to make the camera automatically move with the movement of the subject, whereby the camera is enabled to automatically track and photograph the subject.