Tripod Mount Ring, iShoot Lens Collar Socket Compatible with Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens (EF/F Mount), Built-in Quick Release Plate for Tripod Ball Head of ARCA-Swiss Kirk Fit

1. The lens collar is tailor-made and only Compatible with Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens (EF and F Mount), Not Compatible with Sigma 100-400mm f/5-6.3 DG DN OS (E-mount and L-Mount) and other lenses； 2. The lens collar is made of aviation aluminum, CNC precisely machined, hollow-out weight reduction design, surface polished and anodized, with stainless steel screw; 3. The tripod mount ring is tailored to the lens. Cannot be rotated, with 3M film inside, inner diameter is about 84mm, width is about 23mm; 4. Bottom is added quick release plate feature, plate length is about 70mm, with 1/4 and 3/8 screw holes and stainless steel anti-slip screw, net weight is about 160g; 5. Quick release plate is Arca 39mm standard, compatible with RRS / ARCA-SWISS / ISHOOT tripod ball head of Arca-swiss 39mm fit, for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK clamp.