 "Manfrotto Video Camera Plate - 504PLONG"
 "This long version of the standard plate allows perfect balance for camcorders with unusual weight distribution caused by telescopic lenses or heavy batteries. Supplied 2x1/4&rdquo; and 2x3/8&rdquo; camera fixing screws. Dimensions: 140x10.7x50mm (5.5x0.4x2in)."
 "Manfrotto MVH502AH Pro Video Head Flat Base Size M"
 with sturdier construction and featuring Manfrotto's patented bridging technology (inherited from the 509HD 504HD heads). This head is designed for executing cinematic moves compact camcorders DSLR video cameras. The 502HD comes in two versions -- "AH" flat-base version but also protected against knocks. There are of course independent locks pan tilt "The Manfrotto Pro Video Head Flat Base (3/8"-16 Connection) an affordable yet remarkably full-featured professional that represents advance over popular 501HDV which separately available.<br /> <br Weight capacity 12.2 lb counterbalance supports 8.8 lb. It can support 13 as a static weight. balance plate's 3.27" range allows you to correct uneven payloads might be due matte boxes or exotic rig configurations.<br ensures friction control intuitive easy set smooth manner using included bar.<br <ul> <li>Pan drag continuously adjustable 0 (no drag) maximum level</li> <li>Sliding quick-release place secured by secondary safety system</li> </ul>" this one both selectable continuous zero max level. operate confident "A" ball-base