roo72

Excellent lens, my second "L" that I bought after I got rid of the two kit lenses that came with my 400D. I wanted a walk-around, general purpose lens to compliment my 70-200 2.8 IS and after looking at the alternatives (EF 24-70mm f/2.8L and EF-S 17-55mm f/2.8 IS) I decided to go with this lens. The EF-S was a close competitor but I decided against buying it as I'm planning on getting a FF camera in the near future. I would gladly give up half of its focal length to get f2.8 but nothing's perfect, after testing 24-70 2.8 I decided that IS is more important to me that a bit more light (f4 vs. 2.8), if I want wide aperture I have my 85 1.8 (while dreaming of 85 1.2... maybe one day).

The image quality is generally excellent except for a mild barrel distortion at the wide end (easily corrected with Photoshop anyway). it's a great genera, purpose lens and I'd recommend it to anyone.