Lens Collar Support Tripod Mount Ring Diameter 87mm for Sigma 120-300mm f/2.8 DG OS HSM Sports Lens, Built-in ARCA Fit Quick Release Plate

Metal Lens Collar Support Tripod Mount Ring IS-SM1230
Customized for Sigma 120-300mm f/2.8 DG OS HSM Sports Lens
Bottom is ARCA Fit Quick Release Plate Feature
Compatible with Tripod Ball Head of ARCA-SWISS Fit
Features: 1. The lens collar is made of aviation aluminum, CNC precisely machined, hollow-out weight reduction design, surface polished and anodized, with stainless steel screw;

2. The production standard of the lens bracket is the same as the original factory. With 3M film inside, inner diameter is about 87mm, width is about 21mm; bottom is added quick release plate feature, plate length is about 120mm, with 1/4 and 3/8 screw holes and stainless steel anti-slip screws. It is 82g lighter than the original tripod mount ring TS-51, and its net weight is only about 278g;

3. Bottom quick release plate is AS 39mm standard, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT tripod ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK clamp. Applicable to: Sigma 120-300mm f/2.8 DG OS HSM Sports Lens Package Including: 1 x iShoot Tripod Mount Ring IS-SM1230 for Sigma 120-300mm f/2.8 DG OS HSM Sports Lens
(The other items in the photos not listed here are for illustrating only, not included)