JJC TR-1II ABS Tripod Clamp Replaced Canon Tripod Ring A-2 is the tripod collar for the EF 70-200mm f / 4L (IS and NOT IS versions) lens. By adding a tripod collar to the lens you can better balance on a tripod. In addition, turning the camera will now be much easier and faster.
compatibility:
for Canon EF 70-200mm f / 4L USM
for Canon EF 70-200mm f / 4L IS USM