The 468MG Hydrostatic Ball head is designed to meet the demands of professional photographers; its unique hydraulic locking mechanism provides an incredibly strong lock from minimal operator effort, in a very compact head. Suitable for heavy camera equipment, this version of the 468MG is fitted with the new Q6 Top Lock quick release system, developed to offer photographers a fast, easy to use & very secure camera quick release mechanism suitable for heavy pro equipment. The camera plate clicks into the clamp from above, & as soon as it engages, it triggers a safety pin that stops the plate & 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 & help produce straight images in-camera, ensuring the camera's full frame is usable & reducing post-production time. The Q6 system is also compatible with Arca-style quick release plates & heads from other manufacturers.