Tripod Mount Ring for Di II VC HLD Includes Tripod Mount Lens Support Lens Bracket Tripod and Quick Release Plate with and Screw Holes At the

1. The tripod mount ring is compatible with the 18-400mm f/3.5-6.3 Di II VC HLD B028 (EF/F Mount) and cannot be used with other lenses. The window is for the lens's LOCK switch only. Other switches are blocked. The tripod mount ring is fixed by the switch and cannot be rotated. 2. The bottom of the tripod collar now features a 55mm long Arca Fit quick release plate, which can be directly used with 39mm Arca Swiss Fit tripod ball heads, panoramic heads, and clamps, making it more practical than lens support collars without dovetails. 3. The bottom of the lens support collar has 1/4" and 3/8" screw holes and a stainless steel anti-slip screw for fixing the lens directly to a tripod. 4. The tripod mount ring weighs approximately 155g, has an irregular shape, the smallest diameter is approximately 76mm, the lens contact surface is made of 3M plastic film, the widest is approximately 18mm, and has a large anti-slip knob. 5. The tripod ring is made of aviation aluminum, CNC precisely machined, hollowed out lightweight design, polished and anodized surface finish. The appearance and exquisite workmanship are far superior to similar products made by mold. Lens support collar tripod mount ring IS-TA1840, compatible with 18-400mm f/3.5-6.3 Di II VC HLD B028 (EF/F Mount). The bottom features an Arca fit quick release plate for RRS/Arca-Swiss Fit ball head clamp. Key features: 1. The lens support collar is made of high-density aviation aluminum, lightweight and sturdy. It is precisely machined on a world-class high-end CNC turning center. The cutouts are finely processed with multi-diamond cutters. 2. The surface of the tripod mount ring is made using vibration polishing technology and multiple anodizing, which greatly improves the color uniformity of the metal surface. The appearance and exquisite workmanship are far superior to similar products made by mold. 3. The lens bracket collar uses laser scanning technology to accurately obtain the lens parameters using the tripod collar, and then accurately cuts the shape of the inner diameter of the tripod ring according to the data. 4. The lens support collar is specially made for the 18-400mm F3.5-6.3 Di II VC HLD B028 lens, and it secures the LOCK switch position of the lens, blocking other switches. The lens support collar is fixed with the switch and cannot be rotated, so it cannot be used with other lenses. 5. The tripod mount ring weighs approximately 155g, is carved into an irregular shape, has a minimum diameter of approximately 76mm, the contact surface with the lens is made of 3M plastic film, and has a maximum width of approximately 18mm, with a large anti-slip knob. 6. The lower quick release plate of the lens support is approximately 55mm long, adopts ARCA-SWISS/RRS 39mm standard fit, and has reserved 1/4 and 3/8 screw holes with stainless steel anti-slip screws. 7. The bottom quick release plate is AS standard and compatible with RRS / ARCA-SWISS / iShoot / Arca 39mm ball heads, including iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK. Package includes: 1 x iShoot Tripod Mount Ring IS-TA1840, Compatible with 18-400mm f/3.5-6.3 Di II VC HLD B028 (EF/F Mount) (Note: Other items in the photos not listed here are for illustration purposes only and are not included)