I bought the carbon tripod because I finally wanted a ball head :-). The tripod is incredibly light and yet very stable. The screw caps are easy to open and then tighten again. The camera sits great on the ball head and is then super adjustable. The fixing screws are smooth-running and yet very easy to fix. 1.: Unfortunately for me there are 2 small weaknesses in the product: The clamps for adjusting the tripod feet rattle incredibly. I always have to worry that the clamps will fall off. 2.: When the camera is attached to the plate on the ball head mount, the spirit level is on the side of the display, which I think is ok. BUT the knob for attaching the plate is then on the side of the lens. With my Sigma, however, the rotary knob is almost on the lens. There are only 10ths to 100ths between the rotary knob and the lens. I find this ugly.Otherwise, the tripod is a recommendation.Positive:-Weight-Stability-Size-Flexibility-faster useNegative:-Clamp to adjust the tripod legs rattle-Setting screw for attaching the mounting plate camera/ball head very, very, very tight to the Tripods from SigmaNevertheless a clear recommendation on my part.