iShoot Metal Lens Collar Tripod Mount Ring Compatible with Canon RF 100500mm f4571L is USM Lens Support Holder Bracket Bottom is ArcaSwiss Fit Quick Release Plate Dovetail Groove

1 The original structure and design of F WIII are adopted and the function of quick release plate is added at the bottom the inner wall of the tripod ring bracket is a concaveconvex irregular structure which is closely integrated with the lens compatible with Canon RF 100500mm f4571L IS USM Lens cant be used for other lenses 2 The contact surface is plastic composite film will not wear lens surface when installed correctly there should be no stickers on the lens surface installation position if there is remove it otherwise it will affect the normal installation after installation it can be freely rotated like the original tripod ring 3 The tripod collar bottom is added 60mm long Arca fit quick release plate feature compatible with ArcaSwiss 39mm fit tripod ball head panoramic head and clamp directly more practical than lens collars without QRPlate 4 The Lens support bottom reserved 14 and 38 screw holes and stainlesssteel antislip screws for fixing lens to tripod directly 5 The lens collar ISRF150 can be combined with clamp mount converter IS3950PRO Sold Separately which can be used for hydraulic heads with Manfrotto structure