iShoot Metal Lens Collar Tripod Mount Ring Compatible with Tamron 150-500mm f/5-6.7 Di III VC VXD A057, Lens Support Holder Bracket Bottom is Arca-Swiss Fit Quick Release Plate Dovetail Groove

1. The tripod mount ring body adopts the original factory standard, and the structure is redesigned and improved. The original simple hand screw knob is upgraded to a 180° quick-lock knob. The quick lock device is made of stainless steel, rotate 180° to lock or release, and pull the knob to unlock; like the original factory, it supports rotating vertical shooting; 2. The connection shaft of the tripod ring is changed from hollow to solid, the lens collar body is thickened, and the inner wall is pasted with PVC film to protect the lens; the overall net weight is about 175g; 3. The lens collar bottom is added 90mm 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; also reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly； 4. The lens collar IS-TA1550 can be combined with clamp mount converter IS-3950PRO (Sold Separately), which can be used for hydraulic heads with Manfrotto structure; 5. The tripod ring is Compatible with Tamron 150-500mm f/5-6.7 Di III VC VXD A057, cannot be used for other lenses. Tips: There should be no stickers on the installation position of the lens. If there are, they should be removed, otherwise the installation will be affected.