Summary: I have owned this lens for a few months now. I still am amazed at how clear and crisp the pictures are. I have had the wonderful opportunity of photographing NFL teams, many local high school teams, and the United States Olympic Wrestling Trials in Iowa. The clarity of the pictures made me look so good.
Summary: The 200-400mm is sharp, fast to focus and great vr. Many people say that it is heavy, well is heavy, but not too heavy that made impossible carry in a hand hold. I walked 6 km with this lens on my hand, also in a rainforest, here in Brazil and don´t get any problem. I have a tripod for the 200-400mm, because the wildlife photography have some moments that you stay in a place for several hours, and this is a sittuation to use the tripod.