Definition: A number that indicates the relative size of the opening of the lens (aperture) and written, for example, as f/16. Because the number is obtained by dividing the focal length of a lens by it's effective aperture, the larger the aperture, the smaller the f-number. In the conventional series, each number represents an aperture that admits half as much light as the preceding one. Thus f/16 lets half as much light as a lens opened to f/11.
Definition: The common term for the aperture setting of a lens. see also f-number.
Definition: The common term for the aperture setting of a lens. see also f-number.
0 komentar:
Post a Comment