Gitzo Systematic Tripod Series 4 Carbon 5 Sections Systematic is the choice of exacting professional photographers who use long lenses & heavy cameras. Not only are Systematic Gitzo’s strongest & most stable tripods, they’re also modular, with a top casting element that opens & closes to allow each tripod to be configured with a flat disk, geared or sliding center column, video half-ball adaptor, leveling base or other Systematic accessories. The latest range features Carbon e Xact tubes, new ultra-stable feet & the Easy Link attachment, making the Systematic even more stable, versatile, & ergonomic. The Easy Link attachment (3/8'' thread) allows the user to attach various accessories such as a Manfrotto arm to use lighting accessories. Series 4 (top leg diameter 37.0mm) is becoming popular thanks to the rigidity from large leg diameters, while the top casting (shared with Series 3 models) is less less bulky & therefore easier to store & carry. GT4553S has a short folded length with its 5-section construction.