iShoot CNC Precision Machined 80mm Metal Lens Support Collar Tripod Mount Ring for Canon EF IS USM and Canon EF IS with Camera Quick Release Plate

1. This lens bracket is specially designed for Canon EF 70-300mm f/4-5.6L IS USM and Canon EF 28-300mm f/3.5-5.6L IS USM lenses. 2. This tripod mount ring has been modified based on Canon's original design, with stronger bearings, improved details, and the addition of a quick release plate function. 3. Net weight is approximately 165g. The inner diameter is approximately 80mm, the width is approximately 18mm. The bottom has a quick release plate function, the plate length is approximately 76mm, and it has 1/4 and 3/8 screw holes. 4. The quick release plate on the bottom uses AS standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / ISHOOT tripod ball heads. 5. 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. Tripod mount ring, lens support collar, tripod mount ring compatible with Canon telephoto zoom lenses, Canon EF 70-300mm f/4-5.6L IS USM and Canon EF 28-300mm f/3.5-5.6L IS USM. Features an Arca-Swiss quick-release plate on the bottom with 1/4" and 3/8" screw holes. 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 pads, a copper knob, and a stainless steel screw. 3. Net weight is approximately 165g. The inner diameter is approximately 80mm, the width is approximately 18mm. The bottom is equipped with a quick release plate, the length of which is approximately 76mm. It has 1/4" and 3/8" screw holes. 4. The quick release plate on the bottom uses AS standard, making it compatible with RRS / ARCA-SWISS / ISHOOT tripod ball heads. 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 models: Canon EF 28-300mm f/3.5-5.6L IS USM Lens, Canon EF 70-300mm f/4-5.6L IS USM Lens Package Contents: 1 x iShoot All-Metal Tripod Mount Ring IS-C730PB Please note: Other items in the photos not listed here are for illustration purposes only, not included.