Abstract: A pair of parallel sliding planar members are each associated with a lip, the lips extending normally from the planes of the members and in opposite outward directions. The planar members are held together for sliding movement along a single axis normal to the longitudinal direction of the lips. A plurality of apertures are formed through the planar members and defined by elongated slots in each planar member. In use, one lip engages the edge of a tripod platform and the other lip engages an edge of a camera body, while the tripod mounting screw from the tripod head passes through one of the apertures and is engaged in a mounting socket in the camera body.