iShoot 78mm Tripod Mount Specially Designed for Canon EF III USM IS and 300mm IS USM with Quick Release Plate Ring, 70-200mm f/2.8L / IS/IS II/IS

iShoot tripod mount ring, compatible with Canon EF 70-200mm f/2.8L / IS/IS II/IS III USM lenses, 100-400mm f/4.5-5.6L IS USM, 35-350mm f/3.5-5.6L USM, and 300mm f/4L IS USM lenses. Features a quick-release plate with 1/4" and 3/8" screw holes at the bottom, compatible with ARCA-SWISS ball head clamps. This tripod mount ring is based on Canon's original design and has been modified to include stronger bearings, improved details, and the addition of a quick-release plate. This tripod mount ring is made of aviation aluminum, CNC precision machined, surface polished and anodized, with split structure, anti-slip patch, copper knob and stainless steel screw. The net weight is approximately 135g. The inner diameter is approximately 78mm, the width is approximately 18mm. The bottom has a quick release plate function, the plate is approximately 65mm long, and has 1/4" and 3/8" screw holes. The quick release plate on the bottom uses the AS standard and is compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / MARSACE / ISHOOT tripod ball heads. Product Description: 1. This tripod mount ring is based on Canon's original design and has been modified to strengthen the bearing, improve details, and add a quick-release plate function. 2. This tripod mount ring is made of aviation aluminum, CNC-machined with precision, polished, and anodized surfaces. It features a split structure, anti-slip pad, copper knob, and stainless steel screw. 3. Net weight is approximately 135g. The inner diameter is approximately 78mm, the width is approximately 18mm. The bottom is equipped with a quick release plate, the length of which is approximately 65mm. It has 1/4" and 3/8" screw holes. 4. The bottom quick release plate uses AS standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / MARSACE / ISHOOT tripod ball heads. Also compatible with iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK tripod head clamps. Compatible with Canon lenses: EF 70-200mm f/2.8L USM Lens, EF 70-200mm f/2.8L IS USM Lens, EF 70-200mm f/2.8L IS II USM Lens, EF 70-200mm f/2.8L IS III USM Lens, EF 100-400mm f/4.5-5.6L IS USM Lens, EF 35-350mm f/3.5-5.6L USM Lens, EF 300mm f/4L IS USM Lens Package Contents: 1 x iShoot All-Metal Tripod Mount Ring IS-C720XB Please note: Other items in the photos not listed here are for illustration purposes only, not included.