ARRI FF-4 19mm Follow Focus Set (Black Edition)

The sleek, black-finished ARRI FF-4 Basic Follow Focus Unit consists of a single-sided follow focus with one standard knob. This robust, economical unit slides onto a pair of lightweight 15mm rods (rods not included). The FF-4 is designed with a 1:2 knob-to-gear ratio for smooth, accurate focus pulls on a variety of lenses. A required focus gear is not included with this unit.

The FF-4 features a modular design that is compatible with most ARRI follow focus accessories such as whips, speed cranks, and knob accessories (available separately). One flat marking disk is included with the FF-4 Basic Unit.

The ARRI BA-2 FF-4 Follow Focus Adapter is used with an ARRI FF-4 or FF-3 base component. Use this adapter to snap the FF-4/FF-3 onto a pair of bridge plate-supported 19mm studio rods (not included). The adapter fastens onto a pair of rods using a single thumbscrew. Mounting and detaching the BA-2 Adapter from the FF-4/FF-3 can be done in the field by the user and does not require shop service.

This ARRI Follow Focus Gear can be used with all ARRI follow focus systems. The 35-tooth, 0.8 mod gear is designed for use with prime lenses and smaller zoom lenses that have 32 pitch gear rings. Its medium-width gear face measures 10mm.

The ARRI Speed Crank fits into the socket of any ARRI follow focus knob. Designed for quick or extended focus pulls, this L-shaped handle enables a camera assistant to rotate the lens focus barrel further than possible when grasping the focus knob itself. The crank's round knob and right-angle configuration enable rotating the focus knob 360° or more, for those shots requiring extreme shifts in focus.

This ARRI Flat Marking Disk is compatible with standard and two-speed follow focus knobs, and the WCU-3 hand unit knob. Use a non-permanent marker to apply temporary focus marks to its surface. This round plastic unit may be used as a replacement or additional marking disk.