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✪Two Knobs for locking top platform and panning base rotation;
✪Detent interval can be changed easily;
✪Ideal for making HDR(High-Dynamic Range) panorama;
✪Can be used as a normal panning base;
✪Note:Both of locking Captive Knob can be adjusted at different positions. If the Captive Locking Knob Lever interferes with other equipment when turned, you may pull out the knob, and relocate it in a more convenient position.