82mm Tripod Mount Ring Lens Collar Compatible with Sigma 105mm f/1.4 DG HSM Art & 100-400mm f/5-6.3 DG DN OS, Lens Support Holder Bracket Bottom is Arca-Swiss Fit Quick Release Plate Dovetail Groove

1. The lens collar is designed and improved with reference to Sigma original TS-111; the tripod collar is tailor-made for Sigma 100-400mm f/5-6.3 DG DN OS (E-mount) & Sigma 105mm f/1.4 DG HSM Art (EF/FX/FE/L-mount), can't be used for other lenses; 2. The net weight of the tripod mount ring is about 170g, inner diameter is about 82mm, width is about 18mm, the inner wall has grooves and notches, and 3M plastic protective film is attached; locking knob with non-slip design? 3. The tripod collar bottom is added 65mm 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 dovetail groove; 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; 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. (Note: The other items in the photos not listed here are for illustrating only, not included)