How Does Autofocus Technology Work?

In this video the NakedScientists explain how autofocus technology found in your camera actually works and a bit about its history.

The technology which reached the mass market in the late 1970’s is found today in almost every camera but very few people really know how it actually works.

Iddo Genuth
Iddo Genuth is the founder and chief editor of He has been a technology reporter working for international publications since the late 1990's and covering photography since 2009. Iddo is also a co-founder of a production company specializing in commercial food and product visual content.

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