The OConnor 2575D Fluid Head is the flagship of OConnor's Ultimate range of fluid heads and features OConnor's stepless, ultra-smooth pan & tilt fluid drag specifically designed to give you the ultimate control and stability for film style shooting. Featuring OConnor's patented sinusoidal counterbalance system for true, accurate balance at any point in the tilt range. Add to this OConnor's stepless, ultra-smooth pan & tilt fluid drag, and you've got the best of all possible combinations.