Correct me if i'm wrong but what's the point of IS in such short focal lengths?
With the release of 24-70 f/4L IS it will be a tough choice for some to decide with the 2.8 non IS version, what do you think?
I think IS is great to have even on a short focal length. I have wished for IS many times on lenses 100mm and below in low light situations. IS helps me keep the ISO down. But I must admit today's new cameras are changing the scenario somewhat. But I do prefer IS.. You many want to try shooting handheld some shots at 1/15 or somewhere around that with IS off, zooming in a bit and checking the corners and objects in the foreground for blur. Then do the same with IS on and see the difference.