Nikon Nikkormar FT3 Kullanım Kılavuzu - Sayfa 21

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Nikon Nikkormar FT3 Kullanım Kılavuzu
DEPTH OF FI ELD
Depth of field refers to a zone extending in front of
and behind the plane of sharpest focus. Within this
zone blur (or unsharpness of the image) will be
negligible and everything can be accepted as in sharp
-
focus. Depth of field extends a greater distance behind
the subject in focus than in front. Depth of field
depends on three factors: focal length of the lens,
lens-to-subject distance and taking aperture. The
smalier the aperture and the shorter the focal length
of the lens, the greater the depth of field (for example,
wide angle lenses have more depth of field than tele-
photos). Also, the closer the subject, the smalier the
depth of field
.
These three factors can be adjusted
independently or in combination to give the photo-
grapher creative control over the final picture.
Depth-ot-Field Preview Button
The depth-of-field preview button located on top of
the Nikkormat lets you check depth of field before
shooting and make desired adjustments. Press the
button and the lens stops down to the preselected
aperture to aliow you to see how much background
or foreground is in or out of focus.
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