Imaging Resource has put their first series of test images on their "comparometer" (compare images). These are shots of their still life image at various ISO settings. I compared the KP images at ISO 3200, 6400, and 12800, with the same from my Pentax K-5 IIs, K-S2, and with the K-1, K-3, and K-70. I have found it important to adjust eye distance to the screen, because of differences in image sizes perhaps due to output sizes from the different models. Otherwise, at a larger blowup size noise can appear greater than in a smaller image. Detail is affected too, which can look better preserved if smaller. To bring up a discontinued model, it is necessary to indicate "all cameras" at the top of the column. You have to click again on a selected ISO image to get the blowup. I looked for noise in areas where shadows were of similar depth. I looked at detail in numerous images on bottle labels, including the Greco-Roman figure and the printing on the Samuel Adams bottle. I found that my K-5 IIs performed surprisingly well, staying very close but not quite with the KP in noise at ISO 3200, and right with it in detail preservation! But at ISO 6400, the KP pulled away, yet with the K-5 IIs being still quite usable by my standard. At ISO 12800, the KP left the K-5 IIs well behind in every respect. The K-S2 exhibited very near as good noise control as the KP at ISO 3200, but already began to lose slight detail, the K-5 IIs being actually better. At ISO 6400, the K-S2 detail was definitely compromised, though noise was still handled fairly well. At ISO 12800, IQ was far behind the KP in every way. The KP and K-1 ran quite close at all 3 ISO settings in both low noise and detail preservation in these JPEG comparisons, but keeping in mind JPEG sharpening is conservative at default in the K-1 design. Even so, this is a very impressive outcome for the KP! The K-3 came in well behind the KP in both noise control and detail preservation at all 3 ISO settings. The K-70 ran close to the KP in noise control, but could not quite stay with it in detail preservation at ISO 12800. The KP also appears to have reduced or eliminated the tendency towards magenta colorcast at default seen other Pentax DSLR models. If this is true, you'll perhaps have to dial in more saturation with the KP to get a similar result!