1. The tripod mount ring is tailored to the lens structure, added a quick release plate function at the bottom; the inner wall of the tripod ring is an irregular ring shape, and the contact surface is sponge, which is tightly integrated with the lens; the lens surface installation position cannot have a sticker, if there is, it should be removed, otherwise it will affect the installation; 2. The tripod collar bottom is added 70mm long Arca fit quick release plate feature, can be used with 39mm Arca-swiss fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate; fixing lens to tripod directly; also reserved 1/4" and 3/8" screw holes;.
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