ARRI Zoom Main Unit ZMU-3A


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Mounted on tripod pan arms while being connected to camera and motor. 

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The ARRI Zoom Main Unit ZMU-3A is a handgrip zoom controller that can be mounted on tripod pan arms while being connected to camera and motor. It includes a force sensitive zoom knob that assistants' thumbs all over the world are familiar with.

Versatile Functions

Zoom speed can be precisely adjusted and zoom limits can be set. A large bar graph shows zoom position, zoom speed and various status messages, and a ZAP button allows for a quick zoom-in for focus check. A switch changes the running direction of the attached lens motor. The RUN switch starts recoding on film and digital cameras.

Tethered or Wireless Operation

ZMU-3A can be connected directly to an ARRI CLM-2, CLM-3 or CLM-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. The optional Wireless Zoom Extension WZE-3 allows wireless operation of the ZMU-3A. In any case, the ZMU-3A can be used in parallel with WCU-4.

Compatible to

  • ARRI Wireless Zoom Extension WZE-3
  • ARRI ALEXA Plus 4:3
  • ARRI ALEXA Studio
  • ARRI ALEXA XT Studio
  • ARRI Universal Motor Controller UMC-4
  • ARRI Single Motor Controller SMC-1
  • ARRI ENG Motor Controller EMC-1
  • ARRICAM, ARRI 416PLUS, ARRI 435 Extreme


Weight 400 g
Operating Temperature -20 to +50°C (-4 to +122°F)
Dimensions 178 * 66 * 37 mm, 3.8 * 2.6 (3.3) * 8.8 inch

Item Includes

Standard Manufacturer's Warranty

Recommended Addons

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