At the risk of being considered rude, my comment is one of suspicion. The author said that he put the two lenses on two different 5D3s and took casual snapshots around his home. So how is it that in each pair of shots, the composition and focus are so identical? And how the heck did he get the dog to stay absolutely perfectly still while he switched cameras?
My dog is camera shy and kind of freezes up and looks away. I just had one camera in each hand and would pay attention to the composition in the corners of each shot and duplicate, as well as kind of brace my shots in the same position. I really just tried to get a variety of shots to see how the lenses might differ.
Thanks for doing the comparison. I am looking at getting one of these 2 lenses. I have some sigma lenses and am generally happy with them. I know the new sigma is supposed to be really sharp but the canon shots look really good too.I just really like the way the canon looks on a camera. Its got a unique extra fat stubby look that makes me want to buy it just for that reason.