Shift in focus due to different light sources??

Started Dec 20, 2008 | Discussions thread
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Peter Aczel Senior Member • Posts: 1,868
Shift in focus due to different light sources??

From 5D MK II white paper:

" Improved AF sensor with 9 visible and 6 invisible assist AF points now automatically corrects for shifts in focus due to different light sources"

Does anybody know what does this mean?
Is it possible the focus is correct in daylight but isn't in incandencent light?

(As far as I remember I did have this phenomenon but I didn't know why...And now I am not sure if I really had it or just imagined I had.)
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http://www.aczelpeter.uw.hu

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