That's a really good lens. One of Canon's best non-L creations. It was my first purchase after I got my camera, actually. Yes, you get significant barreling at 10mm, but it smooths out pretty quickly after that.
You'll find that its focal length makes it a very good companion for the 28-135. Probably 95 percent of my shooting is done with one of these two pieces of glass. Enjoy!





