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ARRI Wireless Compact Unit WCU-4


Combines three axes of lens control with a lens data display in a compact and ergonimic housing
  • Three Axes - all inclusive
  • Alexa remote control
  • Focus tracking
  • Multiple mounting options
  • Pre-marked focus rings

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Exc VAT Price £5,715.00
Inc VAT Price £6,858.00
Cat no. K2.72103.0



The WCU-4 is the most feature rich, modern 3-axis lens controller in the market. Comes with backlit focus ring, integrated lens data display, on-screen scales and user programmable button. Personalized settings and updates can be loaded from SD card.Set includes hand unit, hand strap, lanyard, one plain focus ring and user manual.Power needs to be ordered separately:K2.47851.0 - Battery (Sony) NP-FM 500 H K2.47852.0 - Charger (Sony) BC-VM 50

Three Axes - All Inclusive
The Wireless Compact Unit WCU-4 combines three axes of lens control with a lens data display in a compact and ergonomic housing. Weighing around 780 grams including battery, it’s one of the lightest hand units in its class, providing unrivaled comfort during a long working day.

ALEXA Remote Control
An optional software license will enable you to remote control all ALEXA Plus type cameras, except the ALEXA HD Plus. This includes setting frame rate, shutter angle, exposure index, false color on the monitor output, and more. Extended camera status information is also available, allowing you to quickly check your camera settings at any time.

Vibrating Markers
Tactile vibrating feedback lets you keep your eye on the action in the most challenging situations. Operators can concentrate on the scene, knowing that the hand unit will vibrate to prompt them when focus markers are reached.

Backlit Focus Knob
The super-smooth focus knob contains an integrated light source that shines through the wide, optionally pre-marked focus ring in low light conditions, thus providing clearly readable focus marks at all times. The friction of the focus knob can be easily adjusted to one’s personal preference without any tools.

Easy-to-Read Lens Data Display
Clearly arranged, easy-to-read lens and camera information is available on the large 3” display, along with data from optional ultrasonic distance measurement devices. The transflective display technology ensures perfect readability in all ambient lighting conditions.

Pre-Marked Focus Rings
Lens scales can be mapped to a set of high quality pre-marked focus rings in metric or imperial scale.

Focus Tracking
The WCU-4 user button can be configured to activate focus tracking - setting the focus motor to continuously follow a subject by using an ultrasonic distance measurer. Focus tracking works with ARRI's Ultrasonic Distance Measure UDM-1 and ALEXA Plus or Studio cameras or the Universal Motor Controller UMC-4.

Multiple Mounting Options
The Wireless Compact Unit WCU-4 features M4 mounting points on its top and bo


Special FeaturesBuilt-in vibration motor for tactile feedback
Focus knobLED backlit rotary knob with adjustable friction, 3.0” diameter
16 bit native encoder resolution
Iris SliderFully sealed, splash- and dust-proof slider mechanism
14 bit native encoder resolution
Zoom KnobForce sensitive knob
Ergonomic design
DisplayTransflective TFT LC-Display (readable in bright sunlight)
3.0 inch diagonal
HousingDurable and robust housing made of high-strength anodized aluminum
Sealed assembly with backlit display buttons and index marker
MassApprox. 780 grams including battery
Power SupplyNP-FM500H battery (Sony) or compatible batteries
BC-QM1 battery charger (Sony) or compatible chargers
Power via LCS cable through ARRI camera (cabled mode)
Operating Temperature-20°C to +45°C
Software UpdatesVia SD card
  • 1 x user manual (English)
  • 1 x hand strap
  • 1 x lanyard
  • 1 x plain white focus ring
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    Benefits of a lease
    You use the kit over an agreed period Your payments can be offset against tax You pay VAT on each monthly instalment