The BH-40 Ball Head by Really Right Stuff is a perfect choice for tripod mounted photography, and delivers quick and precise control as well as a steady support for your camera or lens. Positioning and leveling is easily preformed with one instinctive motion, and locking the head can be accomplished with a twist of one control. This makes the BH-40 faster and easier to use when compared to 3-axis pan-tilt tripod heads, and since it lacks any protruding handles and features a compact profile, the BH-40 is easy to pack and carry. Features of the BH-40 Ball HeadLever release clampMicrometer drag tension adjustmentLaser-engraved millimeter scale for precise centeringPrecision panning base is finely laser-engraved at 2.5 degree intervals and features our unique drum and brake design for effortless lockingKnobs are captive and uniquely shaped, making operation "by feel" very intuitive Really Right Stuff BH-40 LR SOAR Mid-Size Ball Head w/B2-40 Lever-Release QR Clamp BH-40-LR