I know it is my fault for not adjusting the F-Stop before I took the images, but it has maybe highlighted another (possible) problem:
I had the F at 5.7 and zoomed in on things with Auto Focus set.
After a few shots I realised the error and set F 8.
It beeped (center spot only used) and I clicked.
Alas when I got home and looked at the early pictures, they were BLURRY.
Later on, I was mucking about and tried the situation again.
Greg? (Geoff? Hey I am BAD with names. B A D !) showed me the trick with live view and zooming in....
If I have a solitary subject and F 5.7 (or 4.5....) and it is a LONG WAY AWAY. I auto focus on it (beep) and click.
It should be in focus - shouldn't it.
If I have F 8 it is, but obviously the DOF has something to do with it.
So is there a problem with what is going on in the camera?
I shall have to do more testing and see what happens.
Shall post results when I have them.