Abstract: A swivel mount for mounting cameras and other such instruments on supports such as tripods. A base member is mounted to the support, with a spherical ball mounted for swivel movement on the base. Cam actuating means is provided to selectively loosen the ball for movement or to lock the ball against relative movement. An annular cap is included to hold the ball in position on the base. Resilient means including a spring washer is disposed between the ball and base means, and a resilient O-ring is disposed between the ball and an internal surface of the cap.