The ball head is used on the 055CXPRO4 of Manfrotto and sits there perfectly. The handling and operation is simple, smooth and reliable. I use a Nikon D90 with battery grip and 55-300 mm telephoto zoom, alternatively, the Sigma 17-70 mm with "Nodalpunktadapter" for panoramic landscapes or with a SB 900 for macro shots. The ball head always holds, by the friction control even when loosening the ball to adjust. The swivel range is sufficient and the removable disk can also operate smoothly. In conjunction with the Manfrotto tripod you an integrated investment.