[ GLOSSARY DEFINITION ] Camera

autofocus

Automatic adjustment of focus to keep the subject sharp.

Also known as: AF

Full Definition & Technical Explanation

Autofocus moves the lens so the subject is in focus automatically, using contrast or phase detection. Faster, more reliable autofocus is a key camera spec.

See autofocus speed and laser autofocus.

Where autofocus Matters

Frequently Asked Questions

What is autofocus?

Automatic adjustment of focus to keep the subject sharp.

What terms are related to autofocus?

Related Camera terms include sensor-shift, gimbal stabilization.

Related Technical Terms

sensor-shift
Stabilization that moves the sensor instead of the lens. Camera
gimbal stabilization
A motorised mount that keeps a camera steady mechanically. Camera
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