Vello Tripod Collar A for Canon 200mm f/2.8, 70-200mm f/4 & 400mm f/5.6

The Tripod Collar A (White) for Canon 200mm f/2.8, 70-200mm f/4 & 400mm f/5.6 Lenses from Vello is designed for use with the Canon 200mm f/2.8L II, 70-200mm f/4L (IS and non-IS versions) and 400mm f/5.6L lenses. The ring makes rotating your lens easier, and the built-in tripod collar improves lens balance by screwing into the tripod mount. This collar has vertical alignment marks for quickly changing the orientation from horizontal to vertical. Using the included bushing, either a 3/8" or a 1/4" tripod mount can used.