Canon PowerShot SD990 IS User Manual - Page 70

Changing the ISO Speed

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- Changing the ISO Speed Select an option. ● After pressing the o button, press the op buttons or turn the  dial to select an ISO speed, then press the m button. X Once set, the ISO speed will appear on the screen. Approximate Values for ISO Speed Automatically sets the ISO speed for shooting mode and shooting conditions. Automatically sets the optimal speed for the shooting mode, shooting conditions and subject or camera motion. Depending on the scene, the speed may be set higher than in ISO Auto, resulting in less subject blur and camera shake. Low Fine weather condition, outdoor shooting. Cloudy, Twilight High Night view, Dark indoor Changing the ISO speed • Lowering the ISO speed results in crisper images. • Raising the ISO speed results in a faster shutter speed, reducing camera shake and letting the flash reach greater distances to the subject. The images, however, will appear rough. • When the camera is set to or , you can press the shutter button halfway to display the automatically set ISO speed. • In , images may appear rough. • With ISO3200, you can set an even faster speed (p. 56). 70

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70
Select an option.
●
After pressing the
o
button, press the
op
buttons or turn the
Â
dial to select
an ISO speed, then press the
m
button.
Once set, the ISO speed will appear on
the screen.
Approximate Values for ISO Speed
•
Lowering the ISO speed results in crisper images.
•
Raising the ISO speed results in a faster shutter speed, reducing camera shake
and letting the flash reach greater distances to the subject. The images,
however, will appear rough.
-
Changing the ISO Speed
Automatically sets the ISO speed for shooting mode and shooting
conditions.
Automatically sets the optimal speed for the shooting mode, shooting
conditions and subject or camera motion.
Depending on the scene, the speed may be set higher than in ISO Auto,
resulting in less subject blur and camera shake.
Low
High
Fine weather condition, outdoor shooting.
Cloudy, Twilight
Night view, Dark indoor
Changing the ISO speed
•
When the camera is set to
or
, you can press the shutter button
halfway to display the automatically set ISO speed.
•
In
, images may appear rough.
•
With ISO3200, you can set an even faster speed (p. 56).