Originally posted by lesmore49 Good check...I looked at the comparison and I think the Pentax has it all over the Canon in that test shot. I'm glad I bought my K10D and not the 40D...after that view.
Be careful when evaluating side-by-sides - there are more variables at play than just the camera body.
When I did my own comparison between the Nikon D80 and Pentax K200D, I used the same Tamron Adaptall lens on both bodies (since I have both Nikon & Pentax adapters). That eliminated the glass variable. I used a separate light meter to measure the exposure, and shot each camera in manual mode with exactly the same shutter/aperature/ISO settings. And, as best as I could, I set the custom settings for both cameras as equal as possible. The resultant RAW images were hard to tell apart - except that the Pentax produced slighly more saturated and pleasing colors (subjective opinion - both cameras were set to AdobeRGB). At high ISOs, the Nikon had somewhat less noise, but the Pentax had more detail (and a more acceptable noise pattern - again, subjective). I'm not at my normal computer right now, or I'd dig up the images.
Oh, and it helped that I already owned both cameras - was just doing it for giggles (boredom, really), so I had no axe to grind while setting up the test.
My point is that you really need to know a lot more about the set-up before making an 'x is better than y' judgement. Also, a comparison like this doesn't take into account things like ergonomics, usability, reliability, durability, range of compatible optics, upgradability, performance in extreme lighting, etc...