The Tiltaing FF-T06 Mini Follow Focus from Tilta can be mounted on and allows you to make smooth focus adjustments. Its fluid movement ensures smooth focus control, and two hard stops ensure precision adjustment.Included with the follow focus is a gear belt for your lens, a 0.8 MOD drive gear, and a removable marking disk. The follow focus mounts onto the included 3.9″ long 15mm rod using the 15mm single-rod clamp. The focus wheel rotates 360°, and two hard-stop screws are included to adjust your stops to match your lens. A hard-shell case is included to store and transport all the components.