Manfrotto Q6 Top Lock Quick-Release 057 Magnesium Ball Head is a compact, systematic, easily adjustable tripod ball head. Compatibly designed for 057 carbon fiber tripods, this Ball Head from Manfrotto comes exclusive with a 90 degree-105 degree portrait angle selector. Manfrotto Q6 057 Tripod Ball Head's quick release system also offers photographers a speedier, simple to use camera mechanism suited for heavy, professional equipment. Manfrotto Q6 057 Fiber Ball Head has a camera plate that clicks into the clamp from above, and as soon as it engages, it triggers a safety pin that stops the plate and camera from sliding out accidentally. Even before the clamp is locked, the camera is securely supported. The clamp has 3 bubble spirit levels (one for each axis of rotation) to facilitate precise framing and help produce straight images in-camera, ensuring the camera's full frame is usable and reducing post-production time. Manfrotto Q6 Quick Release System is also compatible with Arca-style quick release plates and heads from other manufacturers. For top-of-the line devices, Manfrotto Bogen Tripod Accessories is it.