Roger Cicala's insights on Canon AF system

Started Aug 4, 2012 | Discussions thread
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Press Correspondent is right about microadjustment
In reply to John Mason, Aug 16, 2012

I bought FoCal software and gave it a try. None too sure if the software is any good because AF inconsistency does turn up during the test, the software detects this inconsistency and keeps on taking pictures trying to achieve consistent results.

In my experience +5 or -5 has less impact on perceiving a pic as sharp than the logical inconsistency of any AF system, but I may be wrong.

In any case, microadjustment improves accuracy not consistency

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