Ok, these are full zoom (400mm) 100% crops shot using the "Sport/Speed" setting on a 50D with the Sigma 120-400, hand held (resting elbow on deck railing) autofocusing with the IS on. No filter, no editing at all. These are the full size (about 5MB) JPG's (i.e. not taken from the RAW's - which I do have, was just too lazy to use them). These crops are in the 60-90kb area.