The Arri UMC-4 receiver can remotely control focus, iris, and/or zoom, and to record lens metadata for post and VFX use.

The UMC-4 can govern up to three lens motors, and is compatible with WCU-4, SXU-1, Master Grip, and ARRI zoom controls.

This controller is compatible with any Arri or third-party pro camera, and with CLM-3/4/5 lens motors.