Carl Fredrik Ahl Posted January 31, 2019 Share Posted January 31, 2019 Hi, I understand the principle of how PDAF (Phase Detection Auto Focus) works. Look at the image I inserted. I don't understand how the incoming light splits into two rays of light in the two extreme sides of the lens. Why aren't lots of rays of light coming all over the lens? Source: https://photographylife.com/how-phase-detection-autofocus-works Link to comment Share on other sites More sharing options...
CharonY Posted February 1, 2019 Share Posted February 1, 2019 There are. This is a simplified illustration to show where the lightbeams converge (or don't). Link to comment Share on other sites More sharing options...
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