Originally posted by macTak Interesting to see a measure of the SR efficiency--they did not have that with the K-5 review (I also note it gives a better result than DPR's test). What surprises me is that at every ISO from 100 (save at 200 where it's a tie) the K-r does better in noise than the K-5 (a very different result from dxo and I'd say from every studio comparison I've seen). This is especially the case at the higher ISO's; the K-r ISO 25600 is rated 9.5; whereas the K-5 ISO 12800 is rated 9.2 and 25600 is rated 15.3. Something doesn't seem quite right with these results....
I would tend to agree with you on the HighISO results -
eg: almost all reviews I've seen say that the K-r and K-x are very similar -
because I own a K-x and wanted to see if there was any improvement of the K-r over the K-x
I've scrutinized the standardized sample test images over at Imaging-Resource.com -
there was very little difference -
if anything, I thought the K-x images may have been better at HighISO -
But there were others that did not agree -
which only really goes to show it was very, very close -
probably well within margin of experimental error,
and of course any personal bias
Just for comparison/interest from
PopPhoto.com K-x test panel:
But despite these discrepancies -
I still think the Popular Photography review was very worthwhile -
as they often have insights and test certain aspects that others tend to leave out -
like the all important AF speeds -
not just at
some arbitrary light level -
but over the full range of light levels as given by the specs.