Follow focus devices are a must for professional and serious video making. This double sided direct drive offering from OConnor is optimized for both still and cine-style camera lenses. Each version of the O-Focus Dual Mini units, i.e. the Photo Set and the Cine Set, has its own transmission ratio and both have low profiles to allow for large diameter lenses. The device shares the design and build quality of many OConnor CFF-1 accessories and TIPA members view it as an invaluable aid for demanding professionals.