Eachine1 F1 Universal Follow Focus Finder For Dv Hdv Dslr Video Camera

F1 Universal Follow Focus Finder For DV HDV DSLR Video Camera Description: A follow focus is a focus control mechanism used in film and video cameras. It is ergonomic rather than strictly necessary; in other words it does not contribute to the basic functionality of a camera but instead allows the operator to be more efficient and precise. It is usually operated by a focus puller but some camera operators prefer to pull their own focus . The mechanism works through a set of gears on the follow focus that are attached to teeth on the focus ring of the lens. These gears feed to a wheel which, when turned by a focus puller, will spin the teeth and thus the ring on the lens. Specification: Material completely metal (Gear part if of brass and steel,other part is of aluminum) Gear drive can be mounted from both side.(Works for both right-handed and left handed) This set includes flexible gear-belt can be used with any zoom or prime lenses with a wide range of lens diameters(any size from 46 to 110mm) Adjustable locking systems Mounts onto 15 mm Rod Support (60mm centre to centre difference). Compatible with industry stand 15mm rods Rail distance: 60cm Rail diameter 15mm Size: 19 x 10 x 9.5cm Suitable for: All DSLR cameras, video cameras Package included: 1 x F1 follow focus