iShoot Lens Collar Support Tripod Mount Ring for Sigma 100 400mm f 5 6 3 DG OS HSM Contemporary Lens Bottom is ARCA Type Quick Release Plate Compatible with Tripod Ball Head of ARCA Swiss Kirk Fit

100-400mm f5-6.3 DG OS HSM Contemporary Lens, Bottom is ARCA Fit Quick Release Plate Feature, Compatible with Tripod Ball Head of ARCA-SWISS / KIRK Fit Main 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 tripod mount ring is same to original design, specially designed for Sigma 100-400mm f5-6.3 DG OS HSM Contemporary Lens; with 3M film inside, inner diameter is about 84mm, width is about 23mm; 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; ?3?Bottom quick release plate is AS 39mm standard, compatible with ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT tripod ball head of Arca 39mm fit, suitable for IS-JZ30 / IS-JZ50 / IS- JZ64 / IS-QJ58 / IS-QJ64 / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK clamp. Package Includes: 1 x iShoot Tripod Mount Ring IS-SM140 for Sigma 100-400mm f5-6.3 DG OS HSM Contemporary (Note: The other items in the photos not listed here are for illustrating only, not included)