Chrosziel's StudioRig Video VariLock 2 has a double sided connection for a handwheel, follow focus control with 2 variable angle stops and a free wheel and comes with a handwheel, scale and focus lever.
The StudioRig Video's gear unit extends the resulting angle of rotation of the video lenses. Further adjustments are made by the use different gear diameters. All gear drives can be easily mounted without tools. The three modules of the lens manufacturers are available.
The hand wheel with the VariLock 2 Module allows easy setting of two mechanical stops and a free wheel. The VariLock 2 wheel can be attached instead of the first or second hand wheel.