A zoom lens with the zoom in and out controlled by a motor, usually adjusted from the control panel or a remote control. This is as compared to Digital zoom, which does this same function Digitally.
A motorised lens with the zoom 'in' and 'out' controlled by a built-in motor, usually adjusted from the projector's control panel or from the remote control.
A lens with motor controlled zoom in and out, which can usually be adjusted from the control panel of the projector or the remote control.
A zoom lens with the zoom in and out controlled by a motor, usually adjusted from the projector's control panel and also the remote control.
A lens with a servo motor that makes possible electrically controlled zooms.