ARRI UMC-4 LDS Universal Motor Controller

ARRI UMC-4 LDS Universal Motor Controller

ARRI UMC-4 LDS Universal Motor Controller

B&H # ARUMC4LDS MFR # K2.0002058
ARRI UMC-4 LDS Universal Motor Controller

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Expected availability: 7-14 business days

Product Highlights

  • Controls Up to 3 x Lens Motors
  • For ARRI & 3rd-Party Cameras
  • Records Lens Data with Timecode
  • Wireless Lens-File Transfer
  • Full AMIRA/ALEXA Playback Control
  • Select User Setups from AMIRA/ALEXA
  • Set/Show Gear-Teeth Count Mode
  • Use with CLM-3/4/5 Motors
  • Controls Focus / Iris / Zoom Functions
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Interface: Serial


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LENS (ENG-type)

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ARRI K2.0002058 overview

  • 1Description

Use the versatile ARRI UMC-4 LDS Universal Motor Controller to remotely control focus, iris, and/or zoom, and to record lens metadata for post and VFX use. The UMC-4 Controller can govern up to three lens motors, and is compatible with WCU-4, SXU-1, Master Grip, and ARRI zoom controls. This controller is compatible with any ARRI or third-party pro camera, and with CLM-3/4/5 lens motors.

The downloadable SUP 2.0 update for the UMC-4 adds several key functions like wireless lens-file transfer, the ability to set and display your gear motor teeth-count (for correct lens data), support for the cmotion cfinder III, and improved motor characteristics. AMIRA/ALEXA Mini–specific updates include full playback control, selection of user setups, and a PLAY/ERASE status display. An updated LDA (lens data archive) is detailed below in the Features section.

This standard version of the UMC-4 includes two serial ports; optional modules are available separately for linking the UMC-4 to Canon and Fuji focus/zoom controls. The UMC-4's internal timecode clock can be jam-synced, or it can be used to output LTC timecode. The included SD card can be used for recording lens data and timecode, and for updating the controller's firmware. The UMC-4 motor controller features a 2.4" LCD display, a water-resistant design, and a durable, outdoor antenna.

  • Controls up to three CLM-3/4/5 lens motors for focus, iris, and/or zoom control
  • Works with ARRI and third-party cameras
  • Records lens data and timecode for post/VFX use; includes SD card for recording data, and for firmware updates
  • Compatible with WCU-4, SXU-1, Master Grips, and the ZMU-3A and WZE-3 zoom controls
  • Includes serial interface for connecting to UDM-1 distance measure or other peripheral devices; optional Canon and Fuji interfaces available separately
  • Durable, water-resistant design with 3/8"-16 mounting thread
SUP 2.0 Features
  • Wirelessly transmit lens files from the WCU-4 to the UMC
  • Full playback control from the WCU-4 is available when connected to an AMIRA or ALEXA Mini
  • Select among camera user setups when connected to an AMIRA or ALEXA Mini
  • The UMC-4 screen displays a Playback and Erasing indication (AMIRA/ALEXA Mini only)
  • Set/display your motor-gear teeth count using the UMC-4 GUI (for correct lens data)
  • Updated LDA (lens data archive - see below)
  • Supports and displays cmotion cfinder III measurements
  • Improved motor smoothness, speed, acceleration, and accuracy
  • Fixed the ND filter value display from AMIRA/ALEXA Mini
  • Fixed the metric to imperial distance-unit change function
  • Fixed an inverted focus scale on the WCU-4 screen when using pre-marked focus rings
1 x antenna
2 x serial interface
1 x ARRI LCS connector
1 x CAM connector
1 x LENS connector
1 x RS in
1 x each: Focus/Iris/Zoom
1 x Ethernet
1 x SD card slot
1 x 3/8"-16 mounting thread
2 x M4 mounting points
Lens Data Files (SUP 2.0)
  • ARRI Anamorphic Ultra Wide Zoom 19-36mm/T4.2
  • ARRI Anamorphic Ultra Wide Zoom 21-40mm/T4.9
  • Leica Summicron 18, 21, 25, 29, 35, 50, 75, 100, 135mm
  • Leica Summilux 16, 18, 21, 25, 29, 35, 40, 50, 65, 75, 100, 135mm
  • Zeiss LDS VP1 16-30mm
  • Zeiss VP1 16-30mm
  • Zeiss Standard T 2.1 16, 20, 24, 28, 32, 40, 50, 60, 85, 100, 135, 180mm
  • Zeiss Compact Prime CP.2 Standard 15, 18, 21, 25 T2.1, 25 T2.9, 28, 35, 50, 85, 100, 135mm
  • Zeiss Compact Prime CP.2 Super Speed 35, 50, 85mm
  • Zeiss Cinema Zoom, 15-30, 28-80, 70-200mm

ARRI K2.0002058 specs

Connectors 2 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 Channel 8 x Channels: 2.410 to 2.475 GHz
Supply Voltage 9.5 to 34 VDC
Current Consumption Radio On/Ready:
135 mAh at 12 V
70 mAh at 24 V
Mounting Thread 3/8"-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)
Weight With Antenna: 15 oz (428 g)
Packaging Info
Package Weight 1.65 lb
Box Dimensions (LxWxH) 9.9 x 6.5 x 2.8"

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