ARRI Cforce Lens Motors (MAX, RF, Mini)

ARRI Cforce Lens Motors (MAX, RF, Mini)

ARRI’s versatile cforce motors control all common cine-style lenses with remarkable speed and torque. Each has its own individual strengths, and as a family they can do anything—even working side-by-side in a daisy-chain, thanks to their twin LBUS connectors.

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A new level of control

cforce MAX – the ARRI lens motor that combines exceptional speed and strength with intelligent onboard control. Compact and lightweight despite being so fast and powerful, it offers versatile mounting, easy setup and control, and total reliability in the most demanding shooting environments.

MAX speed
  • Market-leading low latency
  • Speeds of up to 400 teeth per second
  • Advanced brushless motor
  • Ideal for focus tracking systems
MAX power
  • Twice as strong and twice as fast as the cforce mini, and only 15% bigger
  • Twice as fast as the cforce plus, yet 15% smaller and lighter
  • Ideal for large cine primes, zoom lenses, vintage glass, and specialty optics
MAX control
  • Integrated touchscreen interface and physical soft touch button
  • Intuitive setup, configuration, and status monitoring
  • Supports manual calibration and fourth auxiliary access control
  • Customizable display with future expandability
MAX connectivity
  • Dual LBUS ports for seamless daisy-chaining
  • LBUS backwards compatibility
  • Usable with most ARRI mounting brackets, rods, and drive gears
MAX versatility
  • Accompanying Motor Rod Clamp MRC-1 provides rock-solid connection
  • Easy adjustment on 19 mm and 15 mm rods
  • Reduced form factor ideal for handheld, gimbal, and studio configurations

cforce MAX basic sets

cforce MAX Basic Kit 15mm
  • K2.0055211, cforce MAX Motor Unit
  • K2.0055222, Motor Rod Clamp MRC-1 15mm
  • K2.72108.0, CLM-4/cforce Gear m0.8/32p, 50t
cforce MAX Basic Kit 19mm
  • K2.0055211, cforce MAX Motor Unit
  • K2.0053386, Motor Rod Clamp MRC-1 19mm
  • K2.72108.0, CLM-4/cforce Gear m0.8/32p, 50t
Small and powerful

This integrated RF-EMIP radio module offers wireless connectivity directly to a Hi‑5 or similar hand unit, removing the need for bulky motor controllers. Lens data files are supported internally, and camera control of ARRI, Sony, and RED cameras is possible. The cforce mini RF offers a speed of 240 teeth/sec.

Integrated wireless modul
  • Built-in white-coded RF radio module eliminates the need for an external motor-controller such as RIA‑1, AMC-1, UMC-4
  • Direct wireless control with up to three hand units for simultaneous F/I/Z/AUX control (compatible with Hi‑5, Hi‑5 SX, ZMU‑4, WCU‑4, and SXU-1)
  • Functions as a radio host, with 14 selectable RF channels for reliable operation
  • Allows compact camera builds, reducing system complexity and setup time
Versatile LBUS ecosystem
  • Daisy-chain capability via LBUS supports up to three additional motors (F/I/Z/AUX)
  • AUX axis assignment enables expanded control possibilities
  • Supports OCU‑1, Master Grips, and other hardwired LBUS devices
  • Supports override workflows with OCU‑1 and Master Grips in host mode
  • Direct camera connection enables run/stop and advanced camera control across ARRI, RED, Sony, Canon, and Blackmagic systems
Precise calibration
  • Wide calibration range to support large-diameter cine lenses
  • Manual calibration via Hi‑5/Hi‑5 SX for exact setting of lens end stops for focus/iris/zoom limits – ideal for sensitive lenses or lenses that lack hard stops
  • “Calibrate all” functionality for simultaneous multi-motor calibration
  • Encoder mode enables manual lens rotation while maintaining lens data recording
Lens metadata in real time 
  • The motor can store and utilize custom lens tables, facilitating accurate lens data even with non-LDS lenses
  • Lens metadata can be transfered into ARRI cameras, as well as non-ARRI cameras such as the Sony VENICE or VENICE 2
  • Supports ARRI’s extended camera data, including enhanced sensitivity, sensor mode, recording resolution, and sensor overdrive (ALEXA 35, ALEXA 35 Xtreme)

The all-rounder: small and lightweight, yet strong enough for most lenses. The cforce mini is your best option when it comes to super-compact camera builds, space-constrained shooting environments, and handheld operating.

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