Auto-focus mode, in which the moving subject is continuously auto-focused. This mode can judge the next action of the subject and make it possible to focus correctly when taking pictures. It can also be called focus prediction autofocus Suitable for moving objects.
Extended data:
Features of various autofocus:
All kinds of autofocus methods have their own limitations. For example, infrared ranging, ultrasonic ranging and other focusing methods will make the ranging system ineffective or inaccurate when the measured object has a strong absorption effect on infrared light or ultrasonic wave. However, focus detection by contrast method is limited by lighting conditions. When the light is dim or the difference between the subject and the background is small, focusing will be difficult or even ineffective.
References:
Baidu encyclopedia-autofocus