duomianshou Tripod Mount Ring Compatible with TS-51 Sigma 120-300mm f/2.8 DG OS HSM Sports, Lens Collar Support Bracket Holder Compatible with Arca-Swiss Fit Camera Quick Release Plate

iShoot Lens Tripod Mount Ring Compatible with TS-51 Sigma 120-300mm f/2.8 DG OS HSM Sports, CNC Machined Lens Collar Support Bracket Holder, Bottom is ARCA Fit Quick Release Plate for Tripod Ball Head ARCA-SWISS Type Main features: 1. This lens collar is tailor-made and compatible with Sigma 120-300mm f/2.8 DG OS HSM Sports lens; the tripod mount ring is referencing to and modified from Sigma original standard design TS-51, details are improved, quick release plate feature is added to the bottom, more practical than the original lens collar; 2. The lens support adopts lightweight design of hollow, with stainless steel screw, net weight is about 278g, 82g lighter than the original tripod mount ring TS-51; the inner diameter of the tripod ring is about 87mm, the width is about 21mm, with 3M film inside for protecting the lens from scratches; 3. The bottom of the lens bracket is 120mm detachable lengthening quick release plate, with 1/4; and 3/8; screw holes and stainless steel anti-slip screws at the bottom; 4. The tripod mount ring 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; 5. This lens holder bottom Quick Release Plate is 39mm Arca-Swiss fit, 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 Lens: 120-300mm f/2.8 DG OS HSM Sports lens Package Includes: 1 x Tripod Mount Ring IS-SM1230 Note: The other items in the photos not listed here are for illustrating only, not included.