Articles tagged "phase-detection"

Video: How phase detection autofocus works

YouTuber ZY Productions has a video wherein he provides a succinct summary of how phase detection autofocus systems work, their benefits and their shortcomings.

Busted! The Myth of Open-loop Phase-detection Autofocus
The myth that focus-locking phase-detection autofocus is an open-loop control system is "Busted!" This article provides tests you can use to prove it is not only a closed-loop control system, but that it's fundamentally the same process as continuous-focus and always has been.