All-metal Lens Collar Support Tripod Mount Ring Compatible with Canon EF 70-200mm f/2.8L USM / IS USM / IS II USM / III USM Lens, EF 100-400mm f/4.5-5.6L IS USM, EF 35-350mm f/3.5-5.6L USM, EF 300mm f/4L IS USM Lens Built-in Arca-Swiss Type Quick Release Plate for Tripod Ball Head Main Features: 1. The lens support is referencing to and modified from Canon original standard design, bearing is enhanced, details are improved, and added the features of quick release plate, more practical; 2. The lens collar is made of Aviation Aluminum, CNC precisely machined, surface anodic oxidation; integrated structure, built-in anti-skid patch, copper knob, stainless steel anti-skid nails; 3. The net weight of the tripod mount ring is about 135g, inner diameter is about 78mm, the ring width is about 18mm; bottom is 65mm length quick release plate, with 1/4" and 3/8" screw holes; 4. Quick release plate is AS 39mm standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT 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-JZ70MFT / IS-JZ80BK. 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 Includes: 1 x iShoot Tripod Mount Ring IS-C720XB (The other items in the photos not listed here are for illustrating only, not included)

5. Pakage Includes: 1 x iShoot Tripod Mount Ring IS-C720XB (The other items in the photos not listed here are for illustrating only, not included.). 4. This lens support bottom is Arca-Swiss fit quick release plate, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT tripod 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 clamp. 3. The tripod mount ring is made of high-density Aviation Aluminum; precisely machined by world-class high-end CNC turning center and hollowed-out carved by diamond combined cutter heads; adopting vibration polishing technology, which improves grinding precision by 20% than manual; multiple anodized, which improves the fineness and uniformity of the color of the metal surface by 10%; the appearance and exquisite workmanship is much better than similar products made by mold. 2. The net weight of the tripod mount ring is about 135g, inner diameter is about 78mm, the ring width is about 18mm; Bottom is added 65mm long quick release plate, with 1/4" and 3/8" screw holes; laser scanning technology is used to accurately obtain the lens parameters, and then the shape of the inner diameter of the lens support is accurately carved based on the data. 1. This lens collar is tailor-made and Compatible with Canon EF 70-200mm f/2.8L USM, EF 70-200mm f/2.8L IS USM, EF 70-200mm f/2.8L IS II USM, EF 70-200mm f/2.8L IS III USM, EF 100-400mm f/4.5-5.6L IS USM, EF 35-350mm f/3.5-5.6L USM, EF 300mm f/4L IS USM, can't be used for other lens.

Manufacturer: iShoot. Date First Available: July 28, 2017. Is Discontinued By Manufacturer: No. Best Sellers Rank: #101 in Tripod Lens Mount Rings. Customer Reviews: 3.9 out of 5 stars 17 ratings 3.9 out of 5 stars. Item model number: 937198. : B07846GTMP. Item Weight: 7.6 ounces. Package Dimensions: 6.1 x 4.37 x 3.31 inches.