If i had a mk2 i would post up a sampler like viggo did. I've also got some little white boxes! but alas. Well, i could throw up a mk3-vs-mk1, or a few others but i'm not sure how that would help anyone. I see what you are saying Viggo. DarkKnightnine's problems seem different to me. His EXIF data was wiped so i can only speculate, it's hard to find anything there really in critical focus, and since i don't know the shutter speed,f-stop focal length i would guessing. But since he has top gear stuff, and i'm feeling that he knows what he's doing, there wouldn't be much to learn there anyway. I have a close friend who does lots of band/concert photography. He's got a 30d,40d, sigma 30mm, my canon 100f2,and a canon 50f1.8. he gets it done.