I just love to come here and gush about a Sigma lens....especially when it's better than the Canon counterpart....You can just feel the "L" Groupies getting nervous tics...they try to express their opposing opinion (...the "rendering" in the "L" is more to my liking...) with tact...but you can just feel their indignation right thru your keypad.....I guess I don't understand the Fanbois groupie thing....but it is entertaining.How dare you sir? ... don't you know that there is a commandment that says "thou shalt not question L supremacy"?
It's all about the "rendering"!!! LOL. (I love my "L" lenses...but they are not the only fish in the sea.)