Some ARRI cameras (ARRICAM, 435 Xtreme, 435 Advanced with FEM-2) have the necessary electronics for wireless lens or camera remote control already built-in. Others, including the new ARRIFLEX 235, need to be equipped with an external box to connect lens motors and to house the radio: the new Universal Motor Controller UMC-3. The UMC-3 replaces both the UMC-1, which was responsible for lens motor connection, and the radio modules URM-1, URM-2 or URM-3. Up to three CLM-1 or CLM-2 lens motors can be attached to the UMC-3, while it communicates either with the Wireless Main Unit WMU-2 or WMU-3. Optionally the WHA-2, WHA-3 or any ZMU can be used for cabled operation.
Once a Lens Data Display for Focus Puller (LDD-FP) and CLM-1 or CLM-2 motors are connected to the UMC-3, it is possible to use the Lens Data Archive (LDA) for basic Lens Data System functions on any camera with any lens. Lens tables for many Zeiss lenses are already pre-programmed in the LDD-FP, and tables for other lenses can be input in the rental house. Lens Data Archive functions include a remote display of the lens rings and a dynamic depth of field bar graph, as well as setting and managing of electronic focus marks. Additional UMC-3 features include: The external connector of the Cooke S4i lenses can be connected to the UMC-3, and the Lens Data Display for Focus Puller (LDD-FP) can display lens rings, a depth of field bar graph and electronic focus marks. The UMC-3 can connect to selected video cameras to start them, and it can connect to selected video lenses and control them directly. This opens up the whole ARRI Wireless Remote System for video productions. New software improves ramping performance when the UMC-3 is used with WRC-1 and the ARRIFLEX 235, 535A, 535B, 435, 435ES, 435 Advanced or any model of 16SR3. Note that the ARRICAM Studio and the ARRICAM Lite do not need a UMC-3, as they have the same functions built into their respective Lens Data Boxes. The 435 Xtreme has the motor driver built into the FEM-2, but still needs to be equipped with a URM radio modem to communicate wirelessly.

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