I'm going on a safari holiday in 5 weeks time, however my current tripod is pretty poor so I'm looking to buy a new one. I'm looking for a lightweight carbon-Fiber Tripod, possibly Manfrotto or Gitzo that weight 500g-1.7kg max and can support up to 4kg. I have a 150mm-500mm f5 lens that weighs about 1.8kg on its own so the tripod needs to support the lens weight + Camera Body + battery grip. The tripod needs to be lightweight as it will be carried around on a backpack with some camping equipment. Points for the lightest, sturdiest and cheapest (Must be able to buy this in the UK)