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Selecting aperture
In auto mode, your camera will automatically set the
precise shutter speed for proper exposure at the set
aperture. Even so, you have considerable control over
results and dan adjust aperture and shutter speed over
sizable ranges.
For good pictures where no particular effect is
desired,
simply set the aperture as indicated in the
table.
These
settings will provide as much depth of field as possible
while producing a shutter speed fast enough to stop the
motion of most subjects.
There may be times, however, when you want to
obtain a particular effect, such as rendering a certain
range in sharp focus, emphasizing a subject against an
out-of-focus
background,
or selecting a specific shutter
speed.
In these
cases,
you must select the appropriate
aperture to give the desired depth of field (see
p.
28) or
the desired shutter speed (p
.
29).
Guidelines for typical picture-taking situations
Hazy
Heavy
ISO
Sunny
Sun
Over-
Indoors
cast
-,.-
~ £0
~
25
f/8
f/4
f/2
f/1.4
64
f/8
f/4
f/2.B
1/1.4
100
f/11
f/5 .6
f/4
f/1.4
160
f/11
fIB
f/5 .6
f/2
200
f/1 .1
fIB
f/5.6
f/?
400
f/16
f/11
f/8
ft2.8
1000
f/22
f/16
f/11
f/4
19
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