Taking its inspiration from our top professional video head models, the 501HDV features a fixed counterbalance spring set for a typical weight of camera + accessories of 2.5kg that helps ensure both smoother tilt movements and greater equipment safety even when tilt locks are inadvertently left off. The easy-to-reach on/off switch allows the counterbalance system to be disengaged or re-engaged for different filming setups. With its improved design, the 501HDV head offers more ergonomics with locks and knobs that allow a more solid grip and better fingertip control.