Tripod Collar Mount Ring for Canon TS-E 17mm f/4L,24mm f/3.5L II Tilt-Shift Lens
And Canon TS-E 24mm f/3.5L II Tilt-Shift Lens. Cannot be rotated. CNC Aviation Aluminum Lens Collar Tripod Mount Ring IS-TS-E1724II. for Canon TS-E 17mm f/4L Tilt-Shift Lens. Canon TS-E 24mm f/3.5L II Tilt-Shift Lens.