Z

zoom in or forward zoom: While the camera is still running the cinematographer increase the length of the zoom lens thereby narrowing the field of view.
zoom out or backward zoom or back zoom: While the camera is still running the cinematographer decreases the length of the zoom lens thereby widening the field of view.
zoom shot, zoom lens: a shot taken with a lens that has a variable focal length, thereby permitting the cinematographer to move between a wide-angle shot to a telephoto shot in one continuous movement (zoom in) or reversed (zoom out/back). There is a subtle difference between the results of a zoom shot and a dolly shot. In a zoom, the relative positions and sizes of all objects in the frame remains the same, whereas in a dolly shot this will change as the camera moves.