Ok, I went out and shot some of my dog (Sam) chasing the ball. My initial impressions are simply "WOW" My 400D nor my 50D ever performed like this. In Zone AF Servo, I probably had a 50-70% hit rate on a very fast dog--handheld, manual exposure. 24-105L @100mm. Here are a couple of shots---both 100% crops


[img]/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.00.23.23/Sam2-100-Crop.JPG[/img]


[img]/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.00.23.23/sam-100crop.JPG[/img]





So Far, I am thrilled. Can't wait to take it out on a real test.