The ARRI UMC-4 is a three-axis motor controller that receives signals from WCU-4, Hi-5 or SXU-1 handheld controllers and drives up to three CLM motors for focus, iris and zoom. Up to three handheld controllers can be connected to it at once.
Suits cameras without integrated ARRI motor control – Sony, Panasonic, RED and others; run/stop is handled via the CAM cable. Two serial ports let you connect UDM-1 or Cine Tape rangefinders. The SD slot is for lens data and firmware updates.
Ideal for
Why ARRI UMC-4 Universal Motor Controller
- Versatility – Connects ARRI ECS with cameras from various manufacturers.
- Three controllers – Focus, iris and zoom can be controlled by three crew members.
- Extensions – Serial ports for UDM-1, Cine Tape and motion control systems.
- Lens data – SD card and Ethernet enable working with lens data and updates.
Key specs
| Type | Motor controller (receiver) |
|---|---|
| Axes | 3 (focus, iris, zoom) |
| Compatibility | WCU-4, Hi-5, SXU-1, ZMU-3A, WZE-3, CLM-2/3/4/5, cforce mini; ALEXA, AMIRA, Sony, Panasonic, RED |
Interfaces
| Serial ports | 2 × (UDM-1, Cine Tape, motion control) |
|---|---|
| Other | EXT/CAM, LCS, LBUS, Ethernet, SD card |
| Timecode | internal and external, LTC output |
| Modules | optional FUJ-1 and CAN-1 for zoom demands |
