ARRI UMC-4 Motor Controller

The ARRI Universal Motor Controller (UMC-4) controls focus, iris, and zoom on any camera and provides vital lens date for set and VFX post production. The intuitive user interface helps to quickly set up the system and makes it easy to use. The high-quality outdoor antenna offers improved durability and reliable radio connectivity.

Noteworthy Attributes:

  • The UMC-4 incorporates LDS Lens data archive and generates frame-accurate lens data with any lens. Lens data is used for lens mapping to pre-marked focus rings and depth-of-field display on the WCU-4 hand unit. It also enables focus tracking—setting the focus motor to continuously follow a subject by using an ultrasonic distance measurer. 
  • The UMC-4 supports internal and external timecode that is recorded with frame-accurate lens data onto SD card, making the lens data usable for postproduction. 
  • The UMC-4 includes multiple interfaces for maximum flexibility on set. Two serial interfaces connect peripheral equipment such as ARRI's UDM-1 distance measure or motion control systems. Optional connector modules interface directly with focus and zoom demands from Fujifilm and Canon. An Ethernet connector integrates the UMC-4 with standard IT equipment, allowing Ethernet-based system control and remote access to the lens data files on SD card.

Rental Rates

: $75 + HST
: $150 + HST
: $225 + HST
: $75 + HST
Connectors2 x 7-pin serial
1 x 5-pin LCS
1 x 12-pin CAM
3 x 12-pin motor
1 x RS input
1 x TC in/out
Receiver Channel8 x Channels: 2.410 to 2.475 GHz
Supply Voltage9.5 to 34 VDC
Current ConsumptionRadio On/Ready:
135 mAh at 12 V
70 mAh at 24 V
Mounting Thread3/8"-16
Operating Temperature-4 to 122°F (-20 to 50°C)
Dimensions (WxDxH)Without Antenna: 4.2 x 1.5 x 3.9" (107.7 x 38.5 x 98 mm)
With Antenna: 4.2 x 1.5 x 6.1" (107.7 x 38.5 x 153.9 mm)
WeightWith Antenna: 15 oz (428 g)

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