The Manfrotto 501HDV Pro Video Head features improved drag on both axes and switchable counterbalance for the latest ultralight high-definition camcorders. In addition, controls have been repositioned and reshaped for superior operational ergonomics. A sliding camera plate helps balance uneven payloads due to outboard batteries or matte boxes, dual rosettes permit left- or two-handed pan arm configurations, and the rear-mounted spirit level facilitates rapid setups.