Saturday, November 18, 2017

Composing an image using depth of field

October 18, 2009 by  
Filed under Photo Technique

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The depth of field is one of the main tools that the camera provides to help us to compose an image.

We should see the depth of field like the brush the painter uses in his canvas or the violin the musician plays to perform his music. The depth of field allow us to compose, isolate and highlight our subject.

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When we open or close the camera diaphragm, we are not just letting more light into the sensor or film, we are also making a decision what part of the image are going to be in focus and what part of the image are going to be blurred.

The depth of field is one of the main reasons why we should not use the camera in an automatic setting when we want to compose an image.

The larger the aperture, the less depth of field we have, the closer the subject to the lens, the less depth of field we have, the larger the lens, less depth of field we have.

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The smaller the aperture, the more depth of field we have, the further away the subject is to the lens, the more depth of field we have, the shorter the lens, the more depth of field we have.

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When we are taking pictures for fun, this is not as important, but for the serious amateur photographer, this is a vital desicion.

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