The 501HDV features a fixed counterbalance spring set for a typical weight of camera + accessories of 5.5 lbs (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. The Manfrotto 547B Professional Video Tripod is a 1 stage, twin-leg construction providing great rigidity. It is designed with aluminum legs, technopolymers and die castings to ensure added strength and stability. The 547B Tripod is targeted to young videographers who need an immediate, simple and user friendly solution for their video production needs. Feature Highlights: * First Manfrotto tripod with a 60mm bowl * Upper twin-leg and the one stage construction provides great rigidity, allowing for 33 lbs of payload * Newly redesigned locking collars guarantee exceptional performance * Technopolymers incorporated into the upper casting and on the leg collars * Maximum torsion rigidity and incredible stability * Mid-level fixed spreader and retractable spiked rubber feet included * Lightweight, compact, maximum torsion rigidity and incredible stability