Canon POWERSHOT A2500 User Manual page 50

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" a' 'ginS the ,soSpeed
® Press the <@>
button,
choose
_ [nut"0] i n
the menu, and choose
the desired
option
(_25).
The option
you configured
is now
displayed.
_TO
I_3]D_33
100 200
400 800
1600
utomatically adjusts the ISO speed to suit the shooting mode and
outdoors in fair weather
in cloudy conditions, or at twilight.
night scenes, or in dark rooms.
9
o To view the automatically set ISO speed when the camera is set to [_],
press
the shutter button halfway.
Although choosing a lower ISO speed may reduce image graininess, there
may be a greater risk of subject blurriness in some shooting conditions.
Choosing a higher ISO speed will increase shutter speed, which may reduce
subject blurriness and increase the flash range. However, shots may look
grainy.
i stii!:i
_'_Co_rrect'i_n g
Brightness
_(i-Contrast)
Before
shooting,
excessively
bright or dark image
areas (such
as faces
or
backgrounds)
can be detected
and automatically
adjusted
to the optimal
brightness.
Insufficient
overall
image contrast
can also be automatically
corrected
before shooting
to make subjects
stand
out better.
® Press the
<MENU>
button,
choose
[i-Contrast]
on the [_]
tab, and then
choose
[Auto]
(_i_i 26).
Once the setting
is complete,
[C|] is
displayed.
Under
some shooting
conditions,
correction
may be inaccurate
or
may cause
images
to appear
grainy.
* You can also correct existing images (70).
@@
5O

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