K-r vs. K-x ISO comparison pictures (return of the ISO flower!)

Hey all,

If you recall the release of the K-x about a year ago, you may remember my post with comparison pictures of K-x vs. K-2000 (K-m). Well I have a new K-r, so I've done some new comparisons.

http://www.flickr.com/photos/11899953@N02/sets/72157625259849744/

All photos were taken in DNG RAW and process with no additional noise reduction with the Pentax RAW utility that came with the K-r. I've included 100% crop "ISO elevators" for the convenience of the pixel peepers.

My conclusion from these pictures is that the K-r is not noticeably improved over the K-x.