iShoot Lens Collar Tripod Mount Ring IS-TA5040 Compatible with Tamron 50-400mm F/4.5-6.3 Di III VXD A067 Bottom is 39mm ARCA Fit Quick Release Plate Feature, Compatible with Tripod Head & Clamp of RRS / ARCA-SWISS Fit Main Features: 1. The lens collar 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; the connection shaft of the tripod ring is changed from hollow to solid, the ring body is thickened, and the inner wall is pasted with PVC film to protect the lens; 2. The lens 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; also reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly? 3. The lens collar IS-TA5040 can be combined with clamp mount converter IS-3950PRO (Sold Separately), which can be used for hydraulic heads with Manfrotto structure; 4. 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. Compatible with Tamron Lens A067: 50-400mm f/4.5-6.3 Di III VXD Can't be used for other lenses Package Includes: 1 x iShoot Tripod Mount Ring IS-TA5040 Compatible with Tamron 50-400mm F/4.5-6.3 Di III VXD A067 (Note: The other items in the photos not listed here are for illustrating only, not included)

5. The lens collar can be combined with clamp mount converter IS-3950PRO (Sold Separately), which can be used for hydraulic heads with Manfrotto structure. 4. The Lens support bottom reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly. 3. The tripod collar bottom is added 70mm long Arca fit quick release plate feature, compatible with Arca-Swiss 39mm fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate. 2. 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; the connection shaft of the tripod ring is changed from hollow to solid, the ring body is thickened, and the inner wall is pasted with PVC film to protect the lens. 1. The lens collar body adopts the original factory standard, and the structure is redesigned and improved, compatible with Tamron 50-400mm f/4.5-6.3 Di III VXD A067, can't be used for other lenses.

Manufacturer: iShoot. Date First Available: November 29, 2022. Best Sellers Rank: #102 in Tripod Lens Mount Rings. Customer Reviews: 4.0 out of 5 stars 2 ratings 4.0 out of 5 stars. Item model number: FBA-IS-TA5040. : B0BNKH6Y4H. Item Weight: 8.4 ounces. Package Dimensions: 5.94 x 4.25 x 3.31 inches.