Quote Originally Posted by Ron Kruger
Thanks, Loupey. Then the technology is much more similar than I thought, and your experiments should be at least somewhat applicable to both systems. Please test it with different focal lengths.
I don't know about "start-up time." When I turn IS on, I hear a click of some kind instantly, but I can't imagine how a half-second would make any difference.
When you press the shutter button half way and the IS comes out of 'sleep' mode, it takes some time for it to get in sync (or I gues out of sync) with the camera shake. - TF