[Leif]

Originally Posted by John

Why not take a look at the survey given here www.photozone.de/active/survey/querylens.jsp
You will see there is not much difference, if any, but since the 24/105 has IS I went for that.
You may well be attracted by the f2.8, but don't forget the extra weight.
Here is another useful site http://www.luminous-landscape.com/tu...ding-mtf.shtml

Klaus - on PhotoZone - is in the process of testing the 24-105L, and he has published some preliminary findings, which you can find in the forums. It looks impressive, if the resolution is anything to go by. I think it has a fair bit of CA and vignetting at 24mm wide open, but software should cure that. I'm sure owners can add to those last comments.

I am suspicious of the user surveys as they often contradict my own experiences, and the musings of several respected commentators.

Leif