The new generation of Gitzo center ball heads, are engineered to be the perfect match to our tripods. These heads are designed to be an extremely balanced product, that not only guarantee a high max load, but that also maximize other key features, too often overlooked by the end users. These features include smoothness, minimized drift angle, lightweight, low gravity center, grater tilt angles, compactness, ergonomics and safety. This is achieved by means of unique and exclusive technical solutions, such as the hollow Bubble Ball, the Spring Assisted Double Lock (SADL) and the improved leveling system.Features:Spring Lock - The center SADL (Spring Assisted Double Lock) is a patent pending system that combines two locking systems in one, that maximizes both locking power and ball smoothness. A high friction metal guarantees a high efficiency lock, the PTFE bushing controlled by a pre loaded spring maximizes smoothness and control.Safe Lock - Safe Lock is a special techno polymer that maximises locking torque and equipment stabilisation. It is used on the upper discs of tripods and heads, and in applications where the equipment is rotated and screwed onto the support to eliminate micro movements and vibration.Separate Pan Control - When using a ball head, the ability to lock and unlock the panoramic movement independent of front-back or lateral tilt movements is convenient for panoramic photography and when a high level of control is required.Leveling Bubble - The leveling system made of three independent leveling bubbles on the quick release plate and one in the ball stem, always guarantee perfectly leveled images. The problem that affects many high quality heads in the market regarding drift angle is absolutely minimized with an outstanding value of 0,03Â°.Bubble Ball - Gitzo has now developed a new exclusive technology that enables us to produce high quality, completely round hollow spheres, with a ultra thin wall, for an incredible weight reduction. Gitzo Bubble Ball also features a perfected PTFE treatment that further reduces the surface micro roughness for the ultimate shooting experience and accuracy.