iShoot 82mm Metal Camera Ring Mount Lens Support Lens Bracket for Sigma DG DN OS 105mm DG HSM Bottom is

1. The ring type tripod mount is designed and improved based on Sigma original TS-111. The lens support collar is customized for Sigma 100-400mm f/5-6.3 DG DN OS (E-mount) and Sigma 105mm f/1.4 DG HSM Art (EF/FX/FE/L-mount), so Cannot be used with other lenses. 2. The net weight of the tripod mount ring is about 170g, the inner diameter is about 82mm, the width is about 18mm, there are grooves and cutouts on the inner wall, and a 3M plastic protective film is installed. Locking knob with non-slip design. 3. Added a 65mm long Arca Fit quick release plate feature on the bottom of the tripod collar, which can be used directly with 39mm Arca Swiss Fit tripod ball heads, panoramic heads and clamps. More practical than lens support collars without dovetails. 4. The bottom of the lens support collar has 1/4 and 3/8 screw holes and a stainless steel non-slip screw to directly fix the lens to the tripod. 5.The tripod ring is made of aviation aluminum, CNC precision machined, hollowed out lightweight design, polished finish and surface anodized finish. The appearance and exquisite workmanship are much better than similar products made by mold. iShoot Lens Support Collar Tripod Mount Ring IS-SM105ART Compatible with Sigma 105mm F1.4 DG HSM Art and Sigma 100-400mm F5-6.3 DG DN OS The bottom is the Arca-Fit quick release plate feature on the RRS/Arca-Swiss Fit ball head clamp Main features: 1.The lens support collar is made of high-density aviation aluminum, lightweight and sturdy. Precisely machined on a world-class high-end CNC turning center. Finely hollowed out using a multi-diamond cutter. 2. The surface of the tripod mount ring uses vibration polishing technology and multiple anodizations, which greatly improves the color uniformity of the metal surface. The appearance and exquisite workmanship are much better than 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 precisely carves the shape of the inner diameter of the tripod ring according to the data. 4. The ring type tripod mount is designed and improved based on Sigma original TS-111. The lens support collar is customized for Sigma 100-400mm f/5-6.3 DG DN OS (E-mount) and Sigma 105mm f/1.4 DG HSM Art (EF/FX/FE/L-mount), so Cannot be used with other lenses. 5. The net weight of the tripod mount ring is about 170g, the inner diameter is about 82mm, the width is about 18mm, there are grooves and cutouts on the inner wall, and a 3M plastic protective film is installed. Locking knob with non-slip design. 6. The lower quick release plate of the lens support is about 65mm long and adopts ARCA-SWISS/RRS 39mm standard fit, with stainless steel non-slip screws in the reserved 1/4 and 3/8 screw holes. It is attached. 7.The lower quick release plate is AS standard, compatible with RRS/ARCA-SWISS/PMG/WIMBERLEY/MARKINS/PHOTOCLAM/SUNWAYFOTO/BENRO/SIRUI/MARSACE/ARCA 39mm fit ISHOOT ball head, iShoot IS-JZ30