An apparatus for controlling one or more cameras is provided. The
apparatus includes: a mounting sled, a tilt drive motor, a tilt drive
train, a pan drive motor, and a pan drive train. The mounting sled
includes a camera platform between two sled runners. A lower surface of
each sled runner is formed by a circular arc. The tilt drive train
includes a tilt drive shaft having an axis perpendicular to the camera
platform. The pan drive train includes a pan drive shaft extending along
the axis of the tilt drive shaft such that it receives the tilt drive
shaft and turns independently and concentrically about the tilt drive
shaft. The camera platform receives a camera such that the center of
gravity of the camera is aligned with the diameter of the circular arc of
the sled runners and the vertical axis of the tilt and pan drive shafts.