Image Processing Reference
Fig. 2.12 Examples of how different settings for focal length, aperture and distance to object re-
sult in different depth-of-fields. For a given combination of the three settings the optics are focused
so that the object (person) is in focus. The focused checkers then represent the depth-of-field for
that particular setting, i.e., the range in which the object will be in focus. The figure is based on a
in situations where the amount of light can change significantly, then you have to
enable the camera's automatic settings in order to obtain a useable image.