FRIDAY TIP: Using Apertures to Control the Depth of Field

Depth of field in the term used to describe the distance in front of and behind a focus point that appears sharp in the image.  This is controlled by focal length of a lens and the aperture used.  

A shallow depth of field pulls the viewers attention to the part of the image the photographer has chosen to focus on.  A large depth of field makes sure that most, if not all, of an image is in focus.

The following two images, taken using a Fuji X-Pro1 and Fujinon 14mm f2.8R demonstrate how the use of a wide aperture (f2.8) and a small aperture (f11) alters the depth of field.

Image Shot at f2.8 - the finial is in focus but the background is thrown out of focus

Image Shot at f11 - the finial is in focus and so is the background

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