The ARRI WCU-4 LCS Handset is a widely adopted professional wireless lens control system, providing precise and reliable control over focus, iris, and zoom (FIZ) functions. Known for its robust build, intuitive controls, and clear display, it allows focus pullers to accurately execute demanding lens movements from a distance. With strong wireless connectivity and seamless integration into the ARRI ECS ecosystem, the WCU-4 remains a trusted tool on professional film sets worldwide. 

Overview

  • Professional wireless lens control system 
  • Controls focus, iris, and zoom (FIZ) 
  • Clear, transflective display screen 
  • Robust wireless connectivity 
  • Ergonomic design with tactile feedback 
  • Customisable user buttons 
  • Lens mapping and data storage 
  • Compatible with ARRI cforce motors and receiver 

1x Lanyard for WCU-4 Wireless Compact Lens Cont Unit
1x Low Capacity SDHC Memory Card
1x Monitor Bracket compatible with the ARRI WCU-4
1x ARRI WCU-4 Cheeseplate
5x ARRI Plain White Focus Ring for WCU-4
5x ARRI Pre-Marked Focus Ring – Imperial
1x Sony NP-FM Battery Charger
3x NP-FM500H Battery
1x ARRI CForce Mini RF Motor Unit
2x ARRI CForce Mini Motor Unit
3x ARRI LBUS Cable (0.3m/1ft)
1x ARRI LBUS Cable (0.8m/2.5ft)
1x Arri WCU-4 Case

Lens Mapping Accuracy
For the most precise focus pulls, accurately map your lenses using the WCU-4’s features, especially for non-encoded lenses. 

Tactile Feedback
The WCU-4 provides excellent tactile feedback on its focus knob. Learn to feel the subtle resistance and movement to enhance your focus pulling accuracy, even when not directly looking at the screen. 

Radio Channel Management
In environments with heavy wireless interference, utilise the WCU-4’s ability to scan and select the clearest radio channel for robust connectivity. 

Firmware Synchronisation
Always ensure that the WCU-4 and all connected ARRI motors/receivers have synchronised and up-to-date firmware to prevent communication issues. 

Battery Life
Carry spare batteries for continuous operation, though the WCU-4 generally offers good battery life for a full shooting day.