cmotion steady zoom & pan-bar zoom | Premium LBUS Lens Control Units
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Key Features
Key Features
- Stabilizer-Optimized Zoom Control Design
- Universal Tool-Free Rod Clamp Mounting
- Four Customizable User Buttons
- Native LBUS Connectivity with Daisy-Chaining
- Compatible with WCU-4 & ARRI Camera Systems
Features & Specifications
Product Overview +
Precision Focal Control Tailored for Camera Movements
The cmotion steady zoom and pan-bar zoom series delivers high-performance focal length control exactly where operators need it most. While the classic pan-bar zoom is engineered specifically to mount on standard fluid head handles for traditional studio and broadcast operation, the steady zoom features an updated, ultra-compact design profile. This makes it an ideal mechanical fit for modern camera stabilizer setups, gimbal ring handles, and tight handheld configurations where balance and grip space are heavily constrained.
Seamless Integration into the LBUS Ecosystem
Built to match the rigorous communication standards of premium sets, these zoom units connect via the native LBUS protocol. By utilizing standard LBUS cables, operators can daisy-chain the zoom controllers directly into ARRI cforce lens motors or straight to the integrated data ports of cameras like the ALEXA Mini and ALEXA Mini LF. This direct-wire workflow removes unnecessary hardware components, simplifies camera rig wiring, lowers physical payload weight, and eliminates wireless interference or latency issues entirely.
Customizable Buttons for Muscle Memory Control
The cmotion steady zoom prioritizes swift parameter adjustments by integrating physical interface buttons right on the underside of its mounting clamp. Providing up to four completely custom-mappable user buttons, it puts essential production tasks right at your fingertips. Operators can change system configurations instantly without removing their hands from the rig—triggering critical camera commands such as master run/stop, marker recalls, instantaneous electronic lens limits, or a quick ZAP function for snap-zooming.
Industrial Build Quality and Adaptable Rigging Options
Every mechanical element of these controllers is built to withstand high-pressure shooting conditions day in and day out. Equipped with a heavy-duty, adjustable internal clamping mechanism, the modules lock onto any round pipe or control arm ranging from 15 mm up to 32 mm without slipping. Whether deployed as an operator-driven zoom rocker on a complex tracking car gimbal, or hardwired directly back to a 1st AC's WCU-4 hand unit on a crane build, these tools deliver dependable, master-level tactile feedback.
Technical Specifications +
technical specifications

