Excerpt: The only con to me so far is that when I focus on a different part of the frame, the composition changes so slightly, but that already is a problem for in PS. I am very happy with the product otherwise.
Excerpt: Extremely light weight and well built! The sharpness of this thing might led you to believe is a thousand dollar prime... yes, it's that good. Fast focusing and silent operation. It's also a macro so as you might expect, it's very handy for a wedding.
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Strong Construction