A

David

Darling

depth of field

Factors affecting the depth of field.

Factors affecting the depth of field.


In an imaging system, depth of field is the distance in object space over which the system delivers an acceptably sharp image. In an instrument such as a camera the available depth of field depends on both the quality of lens employed and on the aperture stop. The greater the aperture (the lower the f-number), the shorter the depth of field, and vice versa.