Gitzo 2 Way Fluid HeadThe Gitzo 2 Way Fluid Head is designed for birders, digiscopers, and wildlife videographers. Weighing less than 21 ounces, it replaces the G2180 as a video head with an 8. 8 lb. maximum load, so it is good for 80mm to 95mm spotting scopes with mirrorless cameras or full sized cameras with lenses up to 200mm. The main differences are that the GHF2W is compatible with the Arca Swiss plate system and the addition of a fluid cartridge for smoother panning