Thanks Steve and Denise. I like the buddy shot Denise ("Please don't take my ball... please don't take my ball... ")

How is the 40mm? At first I thought about getting one since they're cheap, but then I figured I already have the 50mm. The 50mm is working just fine for us, and it's nearly the same length as the 40mm, and the 40mm is not as fast. So my second thought was what's the point in picking up a 40mm, even for cheap?

I know you weren't terribly happy with your copy of the 50mm. You've had the 50mm, and now the 40mm. Ignoring sharpness, just considering field of view, is there enough difference to make it worthwhile to own both?