The BL-D7100 L-Bracket for Nikon D7100 Camera from Kirk fits Arca-Swiss-style quick-release clamps. Composed of a PZ-155 camera plate and an LBS-D7100 L-Bracket side, it allows you to switch from portrait to landscape orientation and vice versa with your D7100 digital SLR--without the need to tilt your ball head and re-level the shot. The plate features a 1/4"-20 stainless steel allen screw and an adjacent 1/4"-20 socket. The custom-made two-piece bracket conveniently preserves access to the camera's strap attachment point. It is machined from lightweight 6061T6 aluminum alloy.