iShoot Tripod Mount Ring, Lens Collar Support Compatible with Tamron 70-210mm f/4 Di VC USD A034, Built-in Arca Fit Quick Release Plate for Arca-Swiss Tripod Head Clamp

• 1. The lens collar is tailor-made for Tamron 70-210mm f/4 Di VC USD Lens A034 (Compatible with EF Mount and F Mount), can't be used for other lenses.
• 2. The tripod mount ring's inner diameter is about 74mm, with 3M film inside, preventing lens from scratches; net weight is about 155g.
• 3. 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.
• 4. The Lens support bottom reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screw for fixing lens to tripod directly.
• 5. 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.

Main Features: 1. The tripod mount ring is made of high-density aviation aluminum; precisely machined by world-class high-end CNC turning center and hollowed-out carved by diamond combined cutter heads; 2. Adopting vibration polishing technology, which improves grinding precision by 20% than manual; multiple anodized, which improves the fineness and uniformity of the color of the metal surface by 10%; split structure design, accurate alignment of installation slot, net weight is about 155g; 3. Laser scanning technology is used to accurately obtain the lens parameters, and then the shape of the inner diameter of the lens collar is accurately carved based on the data; the lens collar can tightly fit to the lens; the inner diameter is about 74mm, and the installation mark is laser engraved, which is clear and easy to identify; 4. The 3M plastic film inside the ring reduces the surface wear of the lens. There are detachable non-slip screws and 1/4 and 3/8 screw holes at bottom, the scope of application is wider; 5. Bottom is added 70mm length quick release plate of AS standard, compatible with RRS / ARCA-SWISS / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK. Compatible with Tamron Lens: 70-210mm f/4 Di VC USD Lens A034 ( F Mount and EF Mount) Note: This lens support cannot be used for other lenses. Package Includes: 1 x iShoot Tripod Mount Ring IS-TA721 (The other items in the photos not listed here are for illustrating only, not included)