Well,
I urged Camilsky to replace the 5000 pixel wide IMG-tag by something more civil
So, now we can read the thread but he forgot to include the link to the full size image.
Here it is:
http://www.pentaxslr.com/images/samples/lenses/300/high-rez/image2.jpg
I guess he complains about the panel not being perfectly sharp at 100%.
However, the image is 5120 pixels wide which is wider than a K20D can shoot (shot with new Pentax camera?
). So, this may mean nothing.
I can assure from personal evaluation that the DA*300 is able to make perfectly sharp shots at f/4 and f/5.6 -- even when pixel peeping at 100% on a K20D.
I may add that in image #3 linked by roy, there is blur due to shake which is quite visible at 100%. Not appropriate for a marketing site, indeed.