Here's a K7 ISO2500 image I worked on for a fellow Pentaxian(Adam A) from dpreview. He agreed to let me use this image in part for an advanced noise management tutorial I've been working on(very kindly). And so I thought I would share the preliminaries with you all.
META: Pentax K7, ISO2500, 35mm, 1/60, f/5
The initial image suffered from 1 stop of under exposure, artifacts and banding(horizontal). It was processed in ACR6 and TopazDenoise v4 with intent to print full size(resolution). All in all, I'd say the final composite turned out very good. The total PP time for this image was approximately 15 mins. However, final IQ and PP times would have improved with better exposure(so next time perhaps).
PS. I'm always looking for new candidates to challenge my NR methods with, and since I've maxed out the K20D(ISO6400), I'm now looking for K7 candidates to help further develop my workflow and hopefully K7 owners. So if you are interested in helping out, please PM me so we can work something out.
JB