Giottos MH1300 Series II features
In addition to the ball locking lever of series I heads, an additional control allows you to adjust the friction on the ball whilst unlocked, meaning that you can set the friction to suit the weight of your camera and lens combination. With friction applied to the ball you have far greater control over the speed with which the ball will move and ultimately allow more precise positioning. Other features include an additional pan lock control, an extra large weight saving hollowed ball to ensure stability whilst retaining excellent maximum weight capacities.