The ARRI Zoom Main Unit ZMU-3 is a hand grip zoom controller that can be mounted on tripod pan arms while being connected to camera and motor. It includes a force sensitive zoom knob.
Noteworthy Attributes:
A large bar graph shows zoom position, zoom speed, and various status messages, and a ZAP button allows for a quick zoom-in focus check
ZMU-3 can be connected directly to an ARRI CLM-3 or-4 lens motor and power source. Alternatively, it can be connected with the UMC-4 motor controller or any ALEXA camera that includes the Plus module