'''Depth of field''' in [[photography]], is the length of the area in a image that has acceptable focus. Depth of field can be set up to a certain point, by adjusting the cameras aperture. Lower apertures can be used to blur the background of an image, which can emphasize the focus of the photograph. | '''Depth of field''' in [[photography]], is the length of the area in a image that has acceptable focus. Depth of field can be set up to a certain point, by adjusting the cameras aperture. Lower apertures can be used to blur the background of an image, which can emphasize the focus of the photograph. |