User manual
Universal Motor Controller UMC-4 – User Manual – V 02/2015 Page 11 of 54
Introduction
The Universal Motor Controller UMC-4 is an advanced 3-axis motor
controller. Up to three different hand units can connect to the UMC-4 at the
same time, controlling focus, iris and zoom on any camera. The intuitive
user interface helps to quickly setup the system and makes it easy to use.
The high-performance radio system offers reliable radio connectivity.
The UMC-4 incorporates the 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. For VFX tasks in
post, the UMC-4 records lens data with timecode and inclinometer data,
helping match the virtual lens to the recorded image.
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 internal timecode clock can be jam-synced from
external devices, but can output LTC timecode as well.
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. 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.
The UMC-4 is splash-proof and embodies the reliability and durability for
which ARRI is famous. The worldwide ARRI Service network ensures rapid
second level support if needed. New firmware versions can be installed to
the unit by means of an SD card.
Visit www.arri.com/ecs/umc-4 for up-to-date product information and
software updates.