The canon eos 650 is a 35 mm single lens reflex camera it was introduced in 1987 until february 1989 it was the first camera in canons new eos series which was designed to support autofocus lenses the eos system featured the new ef lens mount which used electrical signals to communicate between the camera and the lens focusing and aperture control were performed by electric motors mounted in the lens body canons first eos camera had the latest technologies including a microprocessor