The video system includes the Manfrotto 509 Professional Fluid Video Head and the 645 Fast Twin Tripod in aluminium. The 509HD fluid head combines ergonomic design features with professional performance. To help you obtain incredibly smooth camera movements and great footage, the 509HD has variable fluid drag and a fast, precise, 4-step counterbalance system that makes it suitable for a wide range of semi-professional and professional camera setups. The 509HD’s patented Advanced Balancing Recorder (ABR) allows you to quickly find, memorise and regain the correctly balanced plate position when using a particular combination of equipment. The 509HD also features Easy Link connectors for easy accessory attachment, an illuminated levelling bubble and replaceable rosettes for pan bar attachment on both sides of the head. The 509HD has a 100mm half ball video tripod mount.