Preston Cinema Systems MDR-4 2-Channel Motor Driver

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Usually Ships in 1-2 Weeks
1.20 LBS
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Product Overview


  • Two-channel motor driver (Focus and Iris or Zoom) for digital lens motors
  • Connects wirelessly to Preston G4 hand controls
  • Serial port allows connection to the Light Ranger 2 and firmware updates
  • Analog port enables direct connection to Micro Force and broadcast-style controls
  • USB port available for firmware updates
  • Perfect for handheld, steadicam, MVI, and other lightweight applications
The MDR-4 takes all the best features from the MDR-3 and packs them into a sleek, compact package. It accepts commands from Preston Hand Units connected via the rugged G4 wireless link and controls up to two digital motors and camera run/stop functions for film and video cameras. The MDR-4 automatically finds the span of the lens once each motor is plugged in, and each channel has its own three-level torque adjustment and direction switch to drive virtually any lens.

The Analog port lets you plug a Micro Force or broadcast-style control directly into the MDR-4, controlling the motor of your choice as configured in the HU3 Mode menu.

The Serial port connects to the Light Ranger 2, transmitting distance information wirelessly to the HU3 and Video Interface unit. Firmware updates can be loaded through the Serial port or the mini USB port.

This unit comes with:
  • On-The-Go (OTG) Mini USB adapter cable


Dimensions 2.9in x 4.1in x 1.6in
Display Wireless Channel
Frequency Band 2.4 GHz
Input Voltage 12-36VDC
Maximum Current Draw 2A (at 24VDC)
Motor Channels Up to two
Number of Wireless Channels 60
Operating Temperature 0F to 122F
Weight 10.6oz (300g)
Wireless Channels 60
Wireless Range 300m (line of sight)


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