iShoot Ring Type Tripod Lens Support Tripod Mount Ring for Sigma DG OS HSM Contemporary Lens Canon EF Nikon F with Quick Rel

1. This lens bracket is specially designed for Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary ( EF Mount and F Mount) lens; Sigma 100-400mm f/5-6.3 DG DN OS (E Mount & L Mount) and other lenses. 2. This ring type tripod mount cannot be rotated. 3M film is used inside the lens support collar to prevent lens scratches. The inner diameter is approximately 84mm, the width is approximately 23mm, and the net weight is approximately 160g. 3. The bottom has added quick release plate function, the length of the plate is about 70mm, with 1/4 and 3/8 screw holes and stainless steel anti-slip screws. 4. This tripod mount ring is made of aviation aluminum, CNC precision machined, hollow out lightweight design, surface polished and anodized, with stainless steel screws. 5. The quick release plate on the bottom uses AS standard, compatible with RRS/ARCA-SWISS/ISHOOT tripod head (tripod ball head). uction design, polished and surface anodized finish. iShoot Camera Ring Tripod Mount, for Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens(for EF Mount and F Mount) Lens, Lens Support Collar, Bottom of Tripod Mount Ring is Quick Release Plate, ARCA-SWISS Compatible with PMG type heads and ball heads. Product introduction: 1.  This tripod mount ring is made of aviation aluminum, CNC precision machining, hollow out lightweight design, surface polished and anodized, with stainless steel screws. 2.  This ring-type tripod mount cannot be rotated. 3M film is used inside the lens support collar to prevent lens scratches. The inner diameter is approximately 84mm, the width is approximately 23mm, and the net weight is approximately 160g. 3.  The bottom has added quick release plate function, the length of the plate is about 70mm, with 1/4 and 3/8 screw holes and stainless steel anti-slip screws. 4.  The quick release plate on the bottom uses AS standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT tripod head (tripod ball head) Compatible. Applicable to iShoot's IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK tripod head clamp. Compatible models:  Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens(for EF Mount and  F Mount) Sigma 100-400mm f/5-6.3 DG DN OS (E Mount & L Mount) and others It is not compatible with this lens. Package Contents:  1 x iShoot All Metal Ring Tripod Mount IS-SM140 Note: 1. This ring tripod mount can only be used with Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens for Canon and Nikon mounts. 2. Other items in the photos not shown here are for illustrative purposes only and are not included.