The Libec TH-Z H Fluid Head is a compact dual-function tripod head with an 11 lb payload and fixed counterbalance and drag. The TH-Z H features a native 75mm half ball and has a flat base with a 3/8"-16 mounting thread on the bottom of the half ball. It's directly compatible with 75mm bowl tripods but can also be mounted directly on sliders and other supports via the flat base.
