Nikon EL2 Bedienungsanleitung PDF herunterladen (Seite 35)

DEPTH OF FIELD

Depth of field refers to the zone of acceptable focus ex

tending in front of, and behind, the plane of sharpest

focus. Within this zone, image blur is negligible and

everything may be considered as being in sharp focus.

Three factors greatly influence the depth of field: the

focal length of the lens in use, thecamera-to-subject dis

tance, and the taking aperture. The smaller the aper

ture and the shorter the focal length of the lens, the

greater the depth of field. Also, the closer the subject,

the shallower the depth of field. These three factors can

operate independently or in conjunction with one an

other, with any one factor capable of partially canceling

the effects of the other. Thus, by careful selection and

use, the photographer can exercise wide creative control

over the final picture.

Depth-of-Field Preview Button

As most Nikkor lenses are operated at full aperture for

ease of focusing, visualization of the depth of field at

the shooting aperture may be difficult. Thus, the

camera’s depth-of-field preview button often can come

in handy. The depth-of-field preview button lets you

check (or "preview”) the zone of sharpness at any time

before (or after) shooting. Simply by depressing the

button, the lens is stopped down to the preselected aper

ture to allow you to see how much background and

foreground is in or out of focus.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 74 75

Keine Kommentare

Nikon EL2 Bedienungsanleitung Seite 35