The Cavision RFGR85 is a gear ring that can be clamped onto a focus ring, allowing for the use of a follow focus system. This gear ring features two hard stops that work with the beginning and ending focus points of the camera lens. This unit is specifically designed for lenses between 82mm and 86mm.

Compatibility 82-86mm Lenses
Gear pitch diameter Fujinon (mod 0.6) Gear Type