I have had this lens now for a few weeks. The first week I did not get a chance to really use it as I was still playing around with the Canon 70-200 f2.8L IS lens I picked up. I have to say the wide angle on this even on a cropped body is amazing. It’s like going back to the old film days when I had a 24mm lens on my Canon EOS-3 camera. You really don’t notice it until you start using it how great it is to have the width sometimes. Now it just makes me want to get a full frame camera even more.
I do see the vignetting problems many people have complained about. I see how it could be worse in a full frame camera body. I do wish this had IS. I know that seems ridiculous for such a short focal length but it would come in handy when taking pictures of kids especially.
What I have noticed that I don’t really like is the hood doesn’t really work very well. It’s just too shallow. I read complaints about it and now I see why they complained about it. Two sides are just barely a hood on this lens. It would be nice if it were just a little bit deeper to block out the extra sun flares that can occur. I don’t always use a hood but I do see their value in certain situations and on a lens that is this wide it’s a shame they didn’t go just a little bit deeper on the petals. That being said, I think this lens will be on my camera body a lot if not all the time now. At least until I tire of the wide angle and get a hold of a Canon 24-105 f4L or a Canon 24-70 f2.8L lens to make my set complete.