What It Means
Good autofocus improves speed, reliability, and subject tracking in both photos and videos. It becomes especially important for moving people, pets, and close-up shots.
Different implementations can also affect low-light focus and macro performance.
Where You Will See It
This term can appear on full specification tables, product comparison pages, and the inline help icons placed next to technical labels.
Use the glossary when you want a quick explanation before comparing two devices feature by feature.