DL Lenses DJI offers four prime lenses for the DL-Mount system, with focal lengths ranging from 16mm to 50mm (35 mm equivalent focal length: 24mm to 77mm) and resolutions of up to 8K. Made of lightweight carbon fiber and designed by world-leading optics teams, the four lenses have been embedded with advanced technologies crafted specifically for the X7's high-end image sensor. DJI DL/DL-S Lenses are professional prime lenses specially designed for aerial photography. Featured light-weighting carbon fiber casing, those lenses are able to reduce the payload of the gimbal and camera, improving the stability when shooting. With the DJI DL mount (diameter: 58mm), the lenses can be mounted onto Zenmuse X7, providing varying focal lengths. When used with Zenmuse X7, the focal length multiplier is 1.5 when taking stills