Originally posted by RiceHigh For those who still don't understand, my suggestion is to compare the test results against other DSLR tests. It's just as simple as that.
Btw, I have summarised the PopPhoto test results of the K20D, 40D, D300 and A700 in single tables for direct and easy comparison, just look and judge yourself:-
RiceHigh's Pentax Blog: First K20D Production Camera Formal Test
How a man, priding himself as a "scientific", could even think of doing that?
An uneducated newby wanting to buy a DSLR might be tempted I know, but it's really not worthy of you!
In addition to eventual "on-chip" hardware noise reduction, there are 4 settings for NR on the K20: off, weakest, weak and strong... even if they turned it "on" (and I don't think they did), it doesn't tell us which setting they chose.
If they used jpegs for these tests, it is necessary to know these settings in order to draw any kind of conclusion.
If they used RAW (.dng) and converted it in ACR, it's even worse as ACR is not yet properly calibrated for the K20D. If they used PPL3.5, they'd have to set the NR parameters the same way you would in-camera so that doesn't change anything either...
Knowing the procedure is crucial in order to be able to assess the meaning of the results.
To me, these results are worthless until we know precisely how they were done: as a scientific (and if you wanted to be objective), you should at the very least put some reservations on them.
Putting tests results side by side is pretty sloppy if you know nothing about the "experimental conditions"...
For reference, look at Imaging Ressource review of the D300, there is an interesting part on the effect of the different NR settings (with pictures this time): that should tell you how important it is at ISO 1600-6400 (just compare ISO 3200 NR off whith NR normal and tell me if it has any impact on noise/resolution).
If Pentax follows more or less Nikon's grading in NR, the corresponding K20 NR setting to D300's "normal" should be "weak".
Come on, let's make some sense and at least wait for K20D's review from Imaging Ressource and other sites/magazines before jumping to conclusions.