Used in conjunction with the DJI Ronin follow focus motor to assist manual focus lenses in achieving center point autofocus. Easily switch between autofocus and manual focus. Make your camera focus at a higher level and take perfect photos. Packing List: 3D Follow Focus System × 1;1/4''-20 Threaded to cold shoe adapter × 1;Camera control cable (USB-C, 30 cm) x 2 Specially designed for DJI RS 2, DJI RS 3, DJI RS 3 Pro