I think many people could have noticed that the IQ of the K20D is actually better than that of the K-7 with more image details and less noise. Here is an example for quick comparison:-http://www.dpreview.com/reviews/pentaxk7/page29.aspDo note the K-7 images above are with Medium Noise Reduction on whilst the K20D are Without. I don't agree with the author that the different noise levels of the
