Originally posted by Fl_Gulfer Sorry they were both set on the green setting, ISO is on Auto. I set everything so the camera would make the best settings on both.
"Best" settings in theory for some purpose, maybe, but th camera can't read you mind as to your intent, and the settings chosen by the K20D were not ideal for your particular particular purpose here. According to the EXIF, the K20D chose ISO 100 and f/4, yielding a shutter speed of 1/350", which would have been great *if* you had managed to hold steadier than you did, and if you didn't mind the shallow DOF that resulted from shooting 300mm at f/4. The K100D doesn't have the option of ISO 100, so it went to ISO 200, whicvh gave you a faster shutter speed, which enabled you to get a less blurry photo. Also for whatever reason chose f/4.5, which yielded slightly more DOF - probably just enough to create the illusion of a sharper photo. Then, on top of that, the K20D happened to choose to focus on a part of the dummy that was a little forward of the part of the dummy the K100D chose to focus on.
Quote: I always wondered why the K100d took much better shots.
Uless your particular K20D is defective - and nothing about this test suggests it is - then it should be capable of doing as well as or better than the K100D. You can't base too much on one test like this where you failed to control any of the basic parameters that contribute to the things you are testing for.