This Wide Drive Gear for MFC-2 Follow Focus from Vocas has a 0.8 gear pitch and 36 teeth and is 0.7" wide. It allows the MFC-2 Follow Focus unit to work with any lens that uses a 0.8 pitch for the gear teeth. The 0.8 gear pitch is the most common gear pitch used on cinema lenses making this drive gear compatible with a wide range of cinema lenses and lens accessories. It can be used in conjunction with the MFC-2 Gear unit 1:1 ratio or 1:1.75 ratio, or with the flexible gear ring with two movable stops from Vocas.