We are proud to announce the release of Software Update Package (SUP) 2.1 for the Universal Motor Controller UMC-4. This release adds 6 additional radio channels to choose from and supports the override function of the Operator Control Unit OCU‑1.

Update Information
We highly recommend updating the UMC-4 to this software update package. Devices delivered from ARRI Austria from now onwards include SUP 2.1

New Features and Changes
- 6 additional radio channels (14 in total)
- Support of override function
- Lens Files for Signature Primes in LDA
- cforce mini RF support
- Several minor improvements and bugfixes

Six additional Radio Channels
The UMC-4 now offer 14 (0-13) instead of 8 radio channels to choose from. Those additional channels are currently supported by the ALEXA LF camera and the cforce mini RF motor.

Support of override function
This software update supports the override function triggered by the Operator Control OCU‑1 or the Master Grips (SUP 2.0). The override function enables operators to override and return focus, iris or zoom at the touch of a button.

Lens files for Signature Primes in LDA
The UMC-4 Lens Data Archive now includes the category “ARRI Signature Primes”, containing all lens files for Signature Primes.