Meaning of depth of field

 

 

 

Depth of field

 

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Digital photography

Glossary of photography terms

 

Meaning and definition of depth of field :

 

The zone of acceptable sharpness in a picture, extending in front of and behind the plane of the subject, that is most precisely focused by the lens. You can control or exploit depth of field by varying three factors: the size of the aperture, the distance of the camera from the subject, and the focal length of the lens. If you decrease the size of the aperture, the depth of field increases, if you focus on a distant subject, depth of field will be greater than if you focus on a near subject, and if you fit a wide-angle lens to your camera, it will give you greater depth of field than a normal lens viewing the same scene. Many SLRs have a depth of field preview control - a button that closes the lens diaphragm to the aperture selected for an exposure so that the depth of field in the image can be checked on the viewing screen first.

 

For the term depth of field may also exist other definitions and meanings, the meaning and definition indicated above are indicative not be used for medical and legal or special purposes.

 

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Meaning and definition of depth of field
Depth of field