I'm hopefully going on safari to Kenya next year. I'm looking for a lens that will complement my 100-400L nicely. I'm thinking 70-200 f2.8 L what do you think? I'm open to any brand obviously if they are good. It is about £1250 at the moment, my maximum budget will be about that really so no prime suggestions please thanks!! I need to know what sort of price I'm looking at so I know how many banks to rob beforehand!!