How the Aperture Affects the Picture
1.
The smaller the aperture, the wider the range
of sharpness. This is illustrated by this pic-
ture above which was taken at f/16. Com-
pare
it
with the photo to its right. This
extended depth of field is especially good for
such subjects as landscapes.
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2. The larger the aperture, the narrower the
range of sharpness. An aperture of f/1.4, for
instance, can isolate your subject from its
surroundings. This is often used to blur a dis-
turbing background in portraiture.
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