« on: June 25, 2013, 03:51:46 AM »
I'm more concerned with color reproduction, CA, distortion, bokeh quality, and AF performance in low light (where it's supposed to excel anyway) A bump in sharpness and resolution wouldn't be too shabby but I wouldn't make sharpness a top priority as the old version of the lens is already quite sharp. I didn't buy the Sigma even if it has great reviews, because of the orange cast, and strong velvets. I much prefer the dominant reds from Canon L lenses. Add 9 rounded blades in the new version, somewhat faster and more accurate shots wide open, updated resolution and micro-contrast, and I'll buy.