The AFMA myth.

Started 5 months ago | Discussions thread
Adam2 Veteran Member • Posts: 6,860
Re: The AFMA myth.

AFMA involves calibrating the camera and lens at a specific distance and light source. As you indicated, it doesn't compensate for huge discrepancies and blantant mis-focus. When shooting through the pentaprism of an DSLR, the camera employs a phased detection array to detect edge contrast and focus the lens. No contrast edges --> no focus. For an explanation, see:

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