Now we see a fuller picture by looking at the colour channels as well as the luminance channels.

Again, larger (signal to noise in dB) figures are better and the best in each ISO setting are highlighted in blue and the worst in red.

The Nikon D50 stands head and shoulders above the rest here - no red numbers at all and quite a few blues. While the Olympus E-500 did very well in the luminance test, the colour channels bring it back down to earth with a bit of a bump. The Pentax *istDL doesn't show too well, especially compared to the Konica Minolta 5D and the Nikon D50, which both use the same Sony sensor. The Canon EOS 350D does surprisingly poorly as well, but we have even more DXO Analyzer data that may help to explain why the 350D appears to do better sample images than its test data indicates.