In article 2013032312113764440-savageduck1@REMOVESPAMmecom, Savageduck
says...
How bad is the OoF problem you are trying to fix?

I was asking a generic question, and was curious to know to what extent
technology has progressed today.

Many cameras nowadays come with inbuilt reduction for vignetting,
chromatic aberrations and geometric distortions.
They might come one day (who knows?) with inbuilt deblurring, allowing
to automatically correct blurriness due to cheap lenses or small AF
errors.
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Alfred Molon
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Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site