af is "auto focus"; AF is the English abbreviation of Automatic Focus, which generally refers to the camera measuring distance in a specific area, and then adjusting the lens in the lens to form a focus, so that the image in the camera looks clear design; compared to MF manual focus, AF has become the standard terminology of modern camera technology.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
af Is it auto focus or manual focus?
AF is the English abbreviation of Automatic Focus, which generally refers to the camera focusing on a specific area (usually the center, but the current system can already specify any corner seen in the viewing window). It is designed to measure distance and then adjust the lens in the lens to form focus so that the image in the camera looks clear; compared to MF manual focus, AF has become a standard term in modern camera technology.
The impact of AF autofocus technology
Since the era of point-and-shoot cameras, you only need to gently press the camera shutter halfway and wait for the familiar 'beep' sound When it sounds, push the shutter all the way! With a ‘click’ sound, the photo is complete. This is a fully automatic photography process that photography players are familiar with, and it is also commonly known as point-and-shoot photography technology. In order to achieve the purpose of autofocus, the technological development behind it has taken 40 years of hard work. Today we can easily own cameras and press the shutter button to take pictures easily. This is also a summary of the efforts of the past 40 years that have greatly democratized professional cameras and entered the lives of the public.
Early so-called ‘autofocus’ cameras had 4 focus points. In addition to the wide-angle lenses commonly used in such cameras, the depth of field was inherently large, so sufficient clarity could basically be obtained. However, getting the camera to focus accurately on the plane of the subject is a matter of luck. In most cases, you can only be satisfied with focusing within the depth of field range. Newer mirror-shutter cameras usually have more than 4 (sometimes as many as 8 or more) focus points, and are relatively more likely to achieve better picture clarity.
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