Hey, this is great - perhaps, as part of the SX-100 gallery and workshop, you could mount the camera on a tripod and take two shots of an object in a lightbox...one with IS 'on' and one with IS 'off'. I'd really like to know if there would be a difference. I think Pete and Roni would too.
I bet the IS 'on' shot will not look any better...any takers?
What he said. IS is absolutely wonderful...when you need it.