- The lens collar is made of aviation aluminum, CNC precisely machined, hollow-out weight reduction design, polished and surface anodized, with stainless steel screw; - The tripod mount ring adopt the same produce standard with the original factory, with 3M film inside, inner diameter is about 80.5mm, width is about 22.5mm; bottom is added quick release plate feature, plate length is about 75mm, with 1/4 and 3/8 screw holes and stainless-steel anti-slip screws, net weight is about 170g; - Bottom quick release plate is AS 39mm standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / 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-.
eBay