These images were all taken using manual focus with a tripod mounted camera and using the self-timer to trigger the shutter. The focus was not touched between shots. The distance to the target was about 15-20 feet. All images were RAW and were converted in ACR using no sharpening. No sharpening was applied before conversion to high quality jpg.

The point her this to show that there is virtually no difference in apparent resolution from f5.6 through f11. At f22 there is very noticable degrading.