The professional fluid video system MVH502A,546BK-1 includes the fluid video head (75mm half ball) MVH502A and the pro video tripod with mid spreader 546B.The MVH502A is a professional video head and has a 75mm half ball video tripod mount. It's designed for use with HDSLR cameras and latest interchangeable lens cameras. It offers professional features such as high-performance variable fluidity and a counterbalance setting designed to match the weight of the most popular cameras and their accessories as external monitors, lights or microphones. The 502 head has a pre-set counterbalance of 4kg (8.8 lb.), but is able to support equipment of up to 10kg (22lbs).The 502 head has two Easy Link connectors to allow an external monitor or other accessory equipment to be fitted directly on the head. The 546B is a two-stage, extremely rigid, stable tripod. Able to carry loads up to 20kg (44.lb). The 546B has a die cast aluminum crown with a built in 75mm bowl. The tripod's telescopic mid-level spreader helps set leg angles accurately. Leg locks are secure and reliable, and spiked feet with rubber overshoes are provided for solid grounding on both uneven terrain and smooth floors. The tripod can be used with various dollies. Supplied with padded carrying bag. Specification Center Of Gravity 2.16 in Closed Length 32.68 in Counter Balanced Weight 8.82 lbs. Maximum Height 66.14 in Minimum Height 17.32 in Safety Payload Weight 22lbs. Weight 12.13 lbs.