iShoot Improved Metal Lens Collar Tripod Mount Ring, for Canon EF 70-200mm f/4L (is/is II) USM, 400mm f/5.6 L 80-200mm f/2.8L Lens, Built-in ARCA-Swiss Fit Quick Release Plate

The tripod mount ring is specially made for Canon EF 70-200mm f/4L USM Lens, Canon EF 70-200mm f/4L IS USM Lens, Canon EF 70-200mm f/4L IS II USM Lens, Canon EF 400mm f/5.6L USM Lens, Canon EF 80-200mm f/2.8L Lens; The lens collar is referencing to and modified from Canon original standard design, bearing is enhanced, details are improved, and added the features of quick release plate; High temperature die casting molding of Aluminum alloy, CNC processing, car paint on surface. Built-in 3M film, copper knob and stainless steel anti-skid nails; The net weight of this lens support bracket is about 135g, inner diameter is about 65.5mm, width is about 18mm; split-structure, bottom is 60mm length quick release plate, with 1/4" and 3/8" screw holes; The lens holder bottom is 39mm Arca-Swiss fit Quick Release Plate, Compatible with RRS / ARCA-SWISS / WIMBERLEY / PMG / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT tripod ball head of Arca 39mm fit.