Autofocus (camera feature)

Autofocus is a camera feature that automatically adjusts the lens to ensure the subject appears sharp and clear. It works by measuring the contrast or distance to the subject using sensors or image analysis algorithms, then moving the lens to focus precisely. This process allows for quick, accurate shots without manual adjustments, making photography easier and more efficient. Autofocus is essential for capturing sharp images in various conditions, whether you're taking portraits, landscapes, or close-ups. Its goal is to ensure the main subject is crisp and well-defined, enhancing overall image quality.