Follow Focus Ring

Autofocus is rarely used in professional film making because the focus mechanisms are not smooth enough to be adjusted while the camera is rolling. Instead, the focus ring on the lens is rotated manually using a geared hand controller called a follow focus. Sometimes the follow focus is turned by the camera operator and sometimes there is a dedicated member of the camera crew called a focus puller.This Follow Focus Ring is a simple design to allow for easy focus or zoom controls while behind the