Tripod Mount Collar Ring A(W) for Canon EF 70-200mm f/4L USM & Canon EF 70-200mm f/4L IS USM
The tripod mount ring mount on the tripod, it helps you fix and balance your tele lens which is heavy or long lens hanging off the front of camera.
right weight and strong building by third party. 100% fits Canon and does have same construction.
Ring diameter: 66mm
Ring thickness: 3mm
Made by metal with very high quality
The UNC (Unified National Coarse Thread) is 1/4
Quantity: Tripod Mount Ring x 1
Brand new, never used
Canon EF 70-200mm f/4L USM
Canon EF 70-200mm f/4L IS USM
Canon EF 300mm f/4L USM
Canon EF 400mm f/5.6L USM