Excerpt: This is a great lens, except that it didn't suit my purposes and I returned to buy a 70-200 f\4 L IS instead. Here is why.I wanted to have a high aperture lens to take portraits of my 3-year old. At f\2 I would have a nice blurry background.
Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh
Summary: If you are on a budget (who isn't?), and you shoot a lot of schoolkid court sports, this is a great option. As a fast lens, it allows you to do without flash (and who would want or be allowed to blind the players, anyway?).
Excerpt: This lens does a great job at getting reasonably closer to a subject without having to be in their face to get a good shot. Lightweight, great depth of field. Solid prime lens. I wish the F-stop was 1.4 like it's 50mm cousin to do even better in low light, but I'm sure that would kick the price up...
Summary: This lens is a great buy for the money. I can't afford a super "high end" glass, and after reading the reviews thought I'd give this one a try. It turned out to be a great addition to my arsenal; whether I'm shooting stills or video.
Summary: Good bang for the buck -- it's like the 50 1.4's Uncle Jim-Bob. Unfortunately, it's a somewhat awkward length, at least on full-frame, and I ended up selling it a few months later because it graced the front of my camera just once in that time.