Much thanks!
The camera should have an fast AF, for photographing birds and jets. But I see, it would be worth saving more money to buy an 5DIII, Keep working with my old (non IS 70-200 2.8L). Today my limiting factor is the grain/noise of my 7D, maybe it gets better with a new body. Later I can still buy a new 70-200 lens for the 5DIII.
