I am afraid I've been tasked to shoot a friends wedding in May and I just picked up a 5D II to replace my somewhat outdated 20D, which by the way, I am totally loving...the images even at high ISO's like 1600 and 3200 are simply incredible. I never shot my 20D above 800 but now I feel like I have a whole new arena to work with.
My question is mostly directed at those who may already have the 5d II and the 70-200 f4 IS or the 70-200 2.8 IS combo's. I currently have the 70-200 f4 IS and I'm wondering if that will be a fast enough lens for the wedding with my newly found extra leeway in the 5D II. I have rented the 2.8 on several occasions to use with my 20D, which has worked out well but now I don't know if I really need to. I know there are those who will always push for the fastest lens possible but I was hoping to get some real experiences from people...thanks!!