Focus adjustment?

Started Jun 26, 2013 | Questions thread
Brad99
Veteran MemberPosts: 3,073
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Re: Focus adjustment?
In reply to stillsnap, Jun 26, 2013

CDAF needs no calibration to reach perfect focus.  The reason PDAF is being grafted on to some mirrorless cameras is to gain AF speed mainly by making the initial movement more positive as the lens can travel in the right direction at first attempt.

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