Abstract: Apparatus for stabilizing unwanted movement of a video camera during tilting, panning, zooming and other camera operations. The stabilizing apparatus includes an elongated balance arm, a pivotal support for supporting the balance arm about a fulcrum point, a camera mount, and a counterweight having a center of gravity below the fulcrum point. The camera mount and counterweight are shaped to position the combined center of gravity of the camera mount with camera and counterweight below the fulcrum point of the balance arm.

Abstract: A rotary film advancement apparatus for use in a motion picture camera or projector which uses film having pairs of evenly spaced perforations located near the edges of the film having a steering channel which defines a closed loop path having a pre-selected contour. A rotor is mounted on the stator and rotates at a selected angular velocity in a given direction of rotation about a rotor axis which extends through the interior of the closed loop contour. At least one claw is pivotally mounted to the rotor about a pivot axis which is radially spaced from the rotor axis and has a claw tip dimensioned to engage a film perforation. The claw tip rotates with the rotor at a claw tip rotational speed. A steering pin spaced from the claw tip and the pivot axis follows the path of the steering channel thereby pivoting the claw tip both forwardly and backwardly, and inwardly and outwardly.