Aperture sizeMost cameras have a light through the lens more or less by using metal phaenklip, which is installed in the camera lens, as the lens light quantity is more or less. By the way, small hole, such as f/22 and gradually larger, respectively, until the full opening, f/1.4, but full size open depends on the size of the lens piece. High price piece lens lens in front of a large exposure means more open Aperture at the broader, such as f/1.2 for photography will choose to use the aperture size. Is generally based on the lighting conditions. If the light is very often use smaller aperture sizes, such as f/11 if the light is less often used large aperture size, for example, f/2, etc.Another factor is the depth and.
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