Terms Listing Glossary Terms (271)

Auto-focus


Auto-focus is a feature of digital cameras that allows them to focus correctly on a subject. It enhances the quality of the photo over fixed-focus cameras and allows for close-ups (or the even closer macro shots).


Phones use passive auto-focus with contrast measurement. This means that the camera needs contrast to focus and have problems focusing on a blank wall or in low light conditions.


Some phones can use their camera LEDs as a focus assist light to help deal with the latter case.


Related terms:

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A_GPS  |  A2DP  |  AAC  |  ACCELEROMETER  |  AIRPLANE_MODE  |  ALARM_CLOCK  |  ALPHANUMERIC  |  AMOLED_DISPLAY  |  ANALOG  |  ANDROID  |  ANTENNA  |  APN  |  AUDIO_JACK  |  AUTO_FOCUS  |  AVRCP  |