Definition for Dolly
From Biology Forums Dictionary
Cameras and other equipment, such as microphones and lights, are often carried around the set on movable platforms. These are dollys and are independently moved by the dolly grip so that the technician, be s/he cameraman, audio or lighting technician, can keep their concerns focused. Dollys are often run on tracks for special dolly pans, chinese dollys, or for mere structurally smoothness. Most of the time, dollys are used for camera work and can include booms for the cameras which allows for the lowering, raising and pivoting of the camera. All of these shots can be achieved simultaneously with an horizontal movement of the camera upon the dolly track.
