The BGE6-L L-Plate for Canon 5D Mark II with BG-E6 Grip from Really Right Stuff is machined from a solid block of aluminum which creates a fixed L-plate that can be changed while on top of a tripod from a vertical to a horizontal position without sacrificing your center of axis. The Arca-type compatible dovetail plate adds quick release functionality to the camera and an anti-twist flange prevents the camera from twisting when the L-plate is attached. Meanwhile the L-plate also maintains complete access to the battery door and the camera's ports. Type II black anodizing has been applied to the CNC machined 6061-T6 aluminum. The anodizing has given the L-plate a smooth surface which is resistant to scuffs scratches and corrosion. Also the L-Plate has laser engraved center marks on the back of each axis for alignment on a tripod head. For the Canon 5D Mark II with BG-E6, Fixed L-Plate, Arca-Type Compatible Dovetail Mount, Maintains Ports and Battery Door Access, No Obstruction to the LCD Monitor, Black Anodized 6061-T6 Aluminum, Laser-Engraved Center Marks, 1/4"-20 Accessory Mounting Socket