iShoot Tripod Mount Ring Base, Lens Collar Foot Support Stand Compatible with Canon RF 600mm F11 IS STM and Canon RF 800mm F11 IS STM, Lens Holder with 39mm Arca-Swiss Fit Quick Release Plate Dovetail
more practical than lens collars without QR-Plate. The Lens collar base bottom reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screw for fixing lens to tripod directly.
4. This lens collar support base bottom's dovetail groove is 39mm Arca-Swiss standard, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK.
5. The tripod mount ring base is made of Aviation Aluminum, precisely machined by world-class high-end CNC turning center, hollow-out weight reduction design, hollowed-out work processed by Multi-Diamond Cutter finely, lightweight and solid, polished and surface anodized finish. The appearance and exquisite workmanship are much better than similar products made by mold..