Preston’s 3-channel wireless follow focus has become the industry standard on sets all over the world, and with good reason. The Academy Award winning technology that went into designing the FI+Z system has resulted in one of the most rugged, reliable, and accurate wireless follow focus system on the market. With the HU3 Hand Unit and Lens Mapping technology, focus pullers can trust that their shots will come out sharp with smooth racking even on the most demanding sets. Our kit includes 3 motors for focus, iris, and zoom control; the MDR-3 motor driver and transceiver; and the HU3 hand unit.