Series 3. six-section aluminium boom. Gitzo's new range of aluminium booms have features & materials normally only available for top of the range models. All aluminium booms now feature our latest aluminium tube, 30% lighter than its predecessor, with Anti Rotation System (ALR), 1.2mm wall thickness & brushed matt black finish for enhanced locking performance & minimised reflectivity. The new tube allows for dramatic weight reduction &, thanks to ALR, aluminium booms are now incredibly