Manfrotto MH055M0-RC4 Magnesium Ball Head Description. The Manfrotto 055 Magnesium Ball Head with RC4 Quick Release is a sturdy professional ball head with separate controls for tilt pan & friction that enable precise positioning. With a 26. 5 lb load capacity & a large-area camera plate with 38-16 14-20 screws the durable head is suitable for just about any camera. The 055 heads lateral tilt ranges from -100 to 40 & pan is a full 360. With the heads independent pan lock its state-of-the-art materials technology that enable smooth movements plus the degree markers around the base the 055 is well-suited for precise panoramic photography. The heads quick-release mechanism is the redesigned RC4 system which offers a large contact area for attaching cameras with long lenses & other heavy equipment.