The compact professional SLIK PBH-535AS ball head has newly desgined Ã¢â¬ÅCam LockÃ¢â¬Â Arca-Swiss type quick release systems for easy mounting the camera. Ã¢â¬ÅCam LockÃ¢â¬Â quick release system allows user to attach or detach a camera from top of the platform and no need to slide in or out the plate from the groove. The PBH-535AS ball head has a capacity of 5kgs. features a separate pan lock that locks the ball into place while allowing the head to rotate 360 degrees. Its tension knob controls the rate of the balls movement. The head is capable of handling a full sized professional DSLR with standard lens. In addition to the standard easy grip ball lock lever the head has a tension adjustment knob to fine-tune the drag on the ball movement. It also has a separate panoramic lock with degree markings around the base for stitching together for panoramic photos.