Features: Semi-circular ring design without shading.Compatible with 1 or 4 thread interface. Aluminum alloy material with stable structure. Fast horizontal and vertical center unchanged, using the circular arc qualities, how to adjust the angle, the center of the screen position remains unchanged, and the lens is always located in the center of the rotating bracket. With cold shoe mount, dovetail groove, 1 or 4-20, 3 or 8 screw hole, multi-functional expansion of the fill light, microphone, and other equipment to meet the needs. Compatible lens maximum outside diameter 94mm, applicable range lens center to ground distance 36.7-50.7mm.The height of the camera quick-release plate can be adjusted, compatible with a of camera specifications. Parameters: Camera screws: 1 or 4 Material: Aluminum alloy colour: Black Package Contents: 1 x Lens Support Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.