The Leofoto LH-30PCL is a professional-grade ball head designed to support heavy payloads while locking solidly and moving smoothly. The large, ergonomic main locking knob is easy to handle, and the precisely-machined ball is silky smooth. Dual drop notches allow you to easily change from landscape mode to portrait mode or other angles. A laser-engraved scale on the panning base provides easy and precise control during panorama shooting.