I just got a 40D last week (upgraded from my trusty 10D). I love the speed of the camera and the high ISO capability compared to the 10D, but one thing that i noticed was that I get sharper quality photos from my 10d than i do from my new 40d. i just transferred my 24-105L lens from the old body to the new one. even when i choose different picture modes, it still seems to produce softer photos. The 24-105L produced really nice sharp photos on the 10d.
my coworker has a nikon D90 so i did some side-by-side comparisons and that camera produces some phenomenal shots. tack sharp... better than anything i've taken without sufficient post-processing. both cameras were set to P mode, ISO auto just to be on equal playing field. granted i'm sure that there are quite a few things that differ between the 2 cameras, but the difference was night and day.
so here are some of my suspected culprits (in no particular order):
- camera shake
- internal 40d custom settings
- lens
i am going to do some more testing (manual focussing, switching out lenses, pixel-peeping at like resolutions between the 40d and 10d, etc).
any other suggestions or feedback would be appreciated!



