The BA-126 Single Lever Ball Head from Oben is a simple ball head with one locking knob to control all motion. The knob allows you to unlock the ball so that you can quickly orient your camera properly, retighten the knob, and return to shooting. This enables fast setup changes, and frees you to keep a finger on the trigger while you're making a quick adjustment to the head's orientation. The head has a 90deg; notch which facilitates shooting in portrait orientation. One bull's eye and three tubular bubble levels ensure your camera is level on both the horizontal and vertical axes. The included quick-release plate has a retractable video pin, and attaches to your camera via its standard 1/4-20 screw. With your camera attached to the quick-release plate, it easily snaps and locks into place on the ball head, and a safety lock on the release lever prevents it from being accidentally