The LP-CTMRB is custom designed to fit the Canon Tripod Mount Ring 'B', such as found on the 70-200 F2.8 IS lenses.
It is important to make sure your lens ring is stamped with "CANON TRIPOD MOUNT RING B", as it will not fit older versions (see LP-CTMX for older lenses).
Made of 6061 aluminum with a hard anodized finish, the LP-CTMRB is supplied with a 1/4"-20 mounting screw and built-in anti-twist flanges that prevent the plate from moving once installed. There is still 1" of clearance left on the plate to allow installation of a Jobu Design quick-release flash bracket.
4.3" (10.5cm) Long
2.9 oz (84 grams)