Tripod Mount Ring Lens Collar Support Bracket Compatible with Sigma 14-24mm F2.8 DG DN Art, 24-70mm F2.8 DG DN Art, 28-70mm F2.8 DG DN C, 85mm F1.4 DG DN Art, 105mm F2.8 DG DN Macro (E-Mount) Lens

1. The lens collar is made according to the shape and structure design of the lens, installed near the mount; 2. The contact surface between the inner wall of the tripod ring and the lens is PVC film to reduce wear; 3. When installing, loosen the knob, align the convex point of the lens with the groove of the ring body, push down gently, and lock it moderately; 4. The tripod collar bottom is added 55mm long Arca fit quick release plate feature, can be used with 39mm Arca-Swiss fit tripod head and clamp directly, more practical than lens collars without QR-Plate; also reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly； 5. The tripod ring is made of Aviation Aluminum, CNC precisely machined, hollow-out weight reduction design, polished and surface anodized finish. The appearance and exquisite workmanship are much better than similar products made by mold.