In cinematography, a tracking shot is any shot where the camera follows backward, forward or moves alongside the subject being recorded. Often the camera is mounted on a camera dolly which rides on rails similar to a railroad track; in this case, the shot is referred to as a dolly shot. A handheld steadycam or gimbal may also be used for smaller scale productions. The camera is then pushed along the track while the scene is being filmed, or moved manually when using a handheld rig. The effect can be used to create a sense of movement, to follow a character or object, or a sense of immersion to draw the viewer into the action.