Tripod Mount Ring Lens Collar Support Compatible with Sigma 17-40mm F1.8 DC Art (X/E Mount); 28-45mm F1.8 DG DN Art, 24-70mm f/2.8 DG DN Art II, 20-200mm F3.5-6.3 DG C, 28-70mm f2.8 DG DN C E-Mount

1. The lens collar is made according to the shape and structure design of the lens, installed near the lens mount; Does not support mounting a camera cage or vertical shooting plate on the camera, as it may cause collisions; ^^ 2. The contact surface between the inner wall of the tripod ring and the lens is with PVC film to reduce wear; there should be no stickers at the installation position, if there is, it should be removed, otherwise it will affect the installation; ^^ 3. When installing, loosen the knob, align the convex point of the lens with the groove of the ring body, push down gently, and make sure the lens mount is flush with the tripod ring before tightening, then lock it moderately; the tripod ring does not support rotation, it can only be used for horizontal shooting, not vertical shooting; ^^ 4.

The tripod collar bottom is added 50mm 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 a QD hole, 1/4" & 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly; ^^ 5. The bottom of the plate is improved with new design, which is also compatible with the handheld stabilizer with the same structure of Arca-Swiss; can be combined with clamp mount converter IS-3950PRO (Sold Separately), which can be used for fluid heads with Manfrotto structure;.