The BH-55 Ball Head with Full-Size Lever-Release Clamp is a 1.96 lb ball head that is developed and made in the USA. It supports large camera/long lens combinations weighing up to 50 lb. Crafted from aluminum and stainless steel, the BH-55 has all of the features you'd expect from a professional-level head. An over-sized, ergonomic locking knob allows 45-degree tilting in all directions and dual 90-degree drop-notches facilitate quick and accurate switching from the horizontal landscape position to vertical portrait orientation. A separate tension knob is provided to apply the appropriate pressure that safely corresponds to the weight of your camera. A third knob loosens and locks the panning base which is laser-engraved with markers every 2.5 degrees from 0 to 360 degrees. <br><p><br> The BH-55 is the culmination of years of iterative development based on first-hand experience and abundant input from seasoned professionals and enthusiasts. Our goal was to build the perfect general-purpose ball head. Our premise was that aesthetics needn't have to play second fiddle to functionality, that operation should be intuitive and predictable, and that your investment should be rewarded with years of satisfaction. The BH-55 delivers solid performance in all weather and temperature ranges. Its low profile, precision control knobs, and rugged housing make our BH-55 the ball head of choice for both seasoned professionals and enthusiastic amateurs.