Originally posted by ahw If you are looking at DPR's K-1 photos and comparing them to DPR's K-1MKII photos, you are completely misunderstanding the issue that DPR's review has found. DPR is comparing K-1MKII photos at 100 ISO + brightening to K-1MKII photos at 6400 ISO. I.e., photos from the exact same camera and the exact same lens, just different ISO values. The photos SHOULD look nearly identical but they do not, due to whatever the camera is doing to process the higher ISO shots. That's the issue.
Worth noting that I have done this at home with my K-1ii and seen the same thing. It's certainly subtle, but its obvious enough that I got a room full of non-photographers (family members) to pick out which was which nearly 100% of the time from 100% crops. All of that said, I love my new camera and am pretty sure at this point I'm keeping it. I figure I can expose for iso1600 and then shoot at iso400 if I am REALLY concerned about the extra detail and any improvement in AF is very welcome :-)
I really hope Pentax enables turning off the NR functionality at least at iso 1600 and below.