1. a camera feature that automatically adjusts the lens to bring the subject into sharp focus
Usage: common in digital cameras, smartphones, and video equipment

1. to automatically adjust focus on a camera or optical device

Examples

• My smartphone's autofocus makes it easy to take sharp photos without any adjustment.
• The camera will autofocus on the subject's face when you press the shutter button halfway.
• This lens has a fast autofocus system that works well in low light.
• You can disable autofocus if you prefer to focus manually.
• The video camera's autofocus kept the moving subject in focus throughout the recording.
• Modern mirrorless cameras have improved autofocus performance compared to older models.