PHOTOGRAPHY. All that you need to know. by David Codina

Author:David Codina
Language: eng
Format: mobi, epub
Published: 2016-03-05T22:00:00+00:00

For example, with an aperture of f5, 6 the depth of field will not be very large, while an aperture of f11 or f16 will be considerable. On the other hand, the closer you are the reason you want to photograph, the lower the depth of field, regardless of the selected aperture. When using telephoto lenses also reduce depth of field. But with wide-angle lenses, depth of field increases.

Aperture and depth of field

The diaphragm also has a direct impact on the sharpness of the image. The more closed is (higher the number) clarity should be greater on the contrary, the more open (smaller f number), the lower the sharpness. At the moment of truth the sharpness also depends on of diffraction.

Diffraction is the effect of light diffusion suffers when passing over a sharp edge, in this case the diaphragm blades. As a result, in photography when using very tight diaphragms the images are less clear. So while on one hand the sharp increases to close, the other decreases with increasing diffraction. There comes a point where what is gained diaphragm is the same as what is lost by diffraction. From there we don't gain clarity when you close the diaphragm. Usually is regarded that the greater sharpness occurs when diaphragms are one or two steps more open than the maximum of the lense.

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