The ARRI BA-3 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 15mm studio rods (not included). The adapter fastens onto a pair of rods using a single thumbscrew. Mounting and detaching the BA-3 Adapter from the FF-4/FF-3 can be done in the field by the user and does not require shop service.

• Works with both the HD and Cine versions of the FF-4 follow focus, and the FF-3
• Thumbscrew-locking adapter snaps onto a pair of 15mm rods (rods not included)
• Fastens onto both rods using a single thumbscrew
• Can be mounted and removed in the field by the user