Lens Collar Tripod Mount Ring Compatible with Sigma APO 80-400mm f/4.5-5.6 EX OS, 80-400mm f/4.5-5.6 EX DG OS, 50-500mm f/4.5-6.3 DG OS HSM, 50-500mm f/4-6.3 EX DG/HSM, 50-500mm f/4-6.3 EX RF/HSM

Lens Tripod Mount Ring Compatible with Sigma TS-31, CNC Machined Lens Collar Support Bracket Holder Bottom is ARCA Fit Quick Release Plate for Tripod Ball Head ARCA-SWISS Type Main features: 1. The lens collar is referencing to and improved from original TS-31. Details are improved, and quick release plate feature is added to the bottom. Unibody design, built-in non-slip paster, with copper knob and stainless steel anti-skid nail; 2. The tripod mount ring is lightweight design of hollow, with stainless steel screw, net weight is about 195g, inner diameter is about 85.5mm, width is about 18mm; bottom is quick release plate of 97.5mm long, reserved with 1/4" and 3/8" screw holes; with 3M film inside for protecting the lens from scratches; 3. The lens bracket is made of high quality Aviation Aluminum, lightweight and solid; precisely machined by world-class high-end CNC turning center, surface anodic oxidation; appearance and exquisite workmanship is much better than similar products made by mold; 4. This lens holder bottom is 39mm Arca-Swiss fit Quick Release Plate, 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 Sigma Lenses: APO 120-300mm f/2.8 EX DG OS HSM APO 120-400mm f/4.5-5.6 DG OS HSM APO 150-500mm f/5-6.3 DG OS HSM APO 80-400mm f/4.5-5.6 EX OS APO 80-400mm f/4.5-5.6 EX DG OS APO 50-500mm f/4.5-6.3 DG OS HSM APO 50-500mm f/4-6.3 EX DG / HSM APO 50-500mm f/4-6.3 EX RF / HSM (Only products with removable tripod mount) Package Includes: 1 x Tripod Mount Ring for Sigma TS-31 Note: The other items in the photos not listed here are for illustrating only, not included.