The Industry Standard for Lens Control

The ARRI Follow Focus FF-4 Basic Unit (K2.65221.0) serves as the core foundational block for high-end professional lens tracking. Finished in a sleek matte black, this unit features premium internal drive mechanics that slow down target rotation to perfectly match cinema-style optics. Camera assistants and focus pullers can perform critical adjustments with complete confidence, knowing the gearbox translates every delicate input without slip or hesitation.

Highly Adaptable Modular Chassis

Built to accommodate evolving camera configurations, the FF-4 features a modular gearbox that can be customized on a per-shoot basis. While the unit comes standard with a high-fidelity left-side focus knob, its dual-sided mounting sockets allow for right-side wheels, speed handles, or flexible extension whips. This flexibility ensures your camera package remains fully operational whether configured for tight handheld builds or massive studio rigging setups.

Broad System Compatibility

The FF-4 basic unit is engineered to match traditional ARRI optical center heights, mounting cleanly to existing lightweight support systems. When transitions demand heavier studio cameras and substantial cinema zoom lenses, the unit adapts instantly. By adding an optional BA-2 or BA-3 bridge plate adapter, the chassis slides onto 19mm or 15mm studio rod setups, maintaining rigid mechanical stability under high pressure.