vvizard wrote:
Thanks, but what I'm looking for, is the difference of the field of view from 24 and 17. Like showing a shot of the same subject shot with both lenses, or even better, shoot the subject @ 17mm, then at 24mm, and then superpose the 24mm image on top of the 17mm, and draw a border around it, so that the difference is clearly seen. Saw this "technique" used in a review showing off how wide the Sigma 12mm really is.
OK, I misunderstood your request (well, I was looking for an excuse to post that one again). 
No time to do any comparisons tonight since I have to be at work at some illegal hour tomorrow morning. But I suspect that someone here will give you a little better idea of what you are looking for.