I still think the 1dmk3 is better than the 40D regarding noise. IQ wise the 1dmk3 seems closer to a 5d IQ than a crop xxd, 7d.
High ISO still isn't something I'd say I'm happy about but its fine for print and websize photo. Even looking at photos in full res on a calibrated monitor an not thrilled with the IQ I get from the 1dmk3. Its still good but not on par with full frame.
Metering is still not that great IMO when it comes to kelvin settings. My 5dmk2 lands the shot in most cases in AWB. I've heard the 1dmk4 is much better in landing kelvin settings AWB. I find more orange skin tones more often in 1dmk3 than any of the camera bodies I owned and used. Just last day I shot a casual family shoot in downtown. One second I have great exposure and turned a differant angle of light and the skin tones were orange!!! This is why i'm not thrilled with the 1dmk3 for portrait sessions.
For my style of shooting ai servo in low contrast may cause me headaches using a 1dmk4. Hunting in low light seems more real than internet rants.




