Quote Originally Posted by JJphoto
so what you guys will say about your lenses with IS? does it work all the time?

Hi JJ....I think IS on my EFS 15-85 works great andlikely "all the time."I'd say my "keeper rate" starts to decline around 1/10s for hand held shots, whichis about right for4 stop IS and approximately85 mm on a 7D. While definitely not as good (2 stop IS),the IS on my100-400Lseems to consistently workas well.


[EDIT]...just looked at some photos and I also have hand held pictures taken at 1/2 s at 15 mm, which again, is about right for 4 stop IS on a 7D with a EFS 15-85.