The Definitive 3-Axis Control Bridge for Professional Sets

The ARRI Universal Motor Controller UMC-4 is a highly capable, standalone 3-axis controller designed to bring advanced wireless lens control to any camera package. Capable of driving focus, iris, and zoom motors simultaneously, the UMC-4 acts as the central communication hub between your camera rig and your focus station. It allows up to three separate hand units—such as the WCU-4, SXU-1, and dedicated zoom demands—to connect and operate independently on the same channel, keeping your camera department perfectly synchronized.

Smart Data Pipelines for Camera Crews and VFX Teams

Beyond simple motor movement, the UMC-4 is a powerful data processor. Incorporating ARRI's Lens Data Archive (LDS), the controller translates lens mechanical positions into frame-accurate spatial data. This information is mapped instantly to pre-marked focus rings, displaying precise focal limits and depth-of-field details on your wireless hand unit. For visual effects houses, the UMC-4 records this lens telemetry alongside highly stable LTC timecode onto a standard SD card, eliminating manual lens notes and dramatically speeding up post-production tracking.

Multi-Interface Flexibility and Sensor Telemetry

The physical chassis of the UMC-4 is optimized for demanding on-set rigging. Equipped with dual serial interfaces, it connects directly with peripheral equipment like the UDM-1 distance measure to display live rangefinder data. An internal tilt-and-roll sensor acts as a digital horizon level, protecting your shots from accidental camera roll. Additionally, the integrated override protocol allows a camera operator running an OCU-1 or Master Grips to temporarily override remote focus pulls, resolving on-set choreography challenges instantly.

Rugged, Modular, and Universally Compatible

Built to endure the physical rigors of feature film production, the UMC-4 easily attaches to standard handles, cages, and baseplates using a modular L-Bracket. It can be adapted to interface directly with broadcast demands like Fujinon or Canon zoom rocker units via dedicated expansion modules. Whether managing a complex camera crane setup, a tracking vehicle, or a studio build with vintage anamorphic lenses, the UMC-4 provides the ultimate connection interface for your entire lens ecosystem.