The Feisol QPL-148045 L-Bracket enables fast changes between portrait and landscape orientation without the need to readjust your head and completely recompose the shot. You can simply release the bracket from your Arca-style quick-release clamp, turn it 90°, and lock the bracket back in place. Using an L-bracket also facilitates a sturdier base of support than tilting an entire head to a 90° position. The machined aluminum QPL-148045 features a safety stop screw to prevent accidental release when adjusting the plate.