I've posted my review of the Pentax K20D digital SLR. This review was quite delayed, and I apologize for the wait. It seems like I received a bad copy of Pentax's 16 - 50 mm lens, which resulted in significant corner blurring and general focusing problems. Since the other lenses I used were fine, I don't believe that the camera is at fault. I am going to try to get another lens, and if I succeed, I will reshoot the photo gallery.

Source... DCResource.com