>Curiously the screen is demonstrating an interesting quirk in the AF
>system...
>If the lens Autofocuses from infinity to target, it's dead on.  If the
>lens autofocus from closup to target, it undershoots focus by just a
>hair.  The error isn't huge and I've determined that it's somewhere
>between f1.7 and f2.0 on my 50mm/f1.4 lens (this by pressing the DOF
>preview button on the camera.)  It doesn't happen all the time, and
>seems to be a bit more frequent on targets w/o very distinct vertical
>lines. Heh... With the f1.4 on there it could be me moving the camera
>ever so slightly fore and aft! =)
>I'll spend some time with the cam on a tripod soon and see if I can't
>tie this down a bit more.

My F801s and Z-1p behaves the same too. This is normal. As soon as you try a 
split image screen in an AF body, you will discover the AF system did not 
focus as accurate as human eyes.

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