This Follow Focus Finder for HDSLR / DSLR / Camcorder (Quick Lock) is a focus control mechanism used in filmmaking with film cameras and in television production with professional video cameras.

It works great with all kinds DSLR camera on the market today. 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's very inconvenient to operate the lens directly. So the follow focus finder provides a greater convenience. Furthermore, the making shallow depth of the field (such as virtual reality after and before) screen shot becomes reality since the emergence of the video SLR.

With precise design and high technology; With Adjustable locking systems;Gear drive can be mounted from both side; Perfect for adjustable mount lens from 52mm-86mm.

Completely gear-driven design for slip-free, accurate, and repeatable focus movement; This Rail Base Plate has a Quick Release plate that enables the quick attached of the camera and easily slides into the adapter.

The plate comes with both 1/4" and 3/8" camera mounting screws; Hence the large variety of cameras can be used with this Rail System.

Including flexible gear belt can be used with any zoom or prime lenses with a wide range of lens diameter.

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.