Canon PowerShot A580 2463B020 User Guide (en)

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Raise the ISO speed to use a fast shutter speed when you wish to 
reduce the effects of camera shake or avoid blurry subjects, or to turn 
the flash off when shooting in a dark area.
Adjusting the ISO Speed
Available Shooting Modes
p. 190
1
Press the 
 
button.
1. Use the 
 or 
 button to change 
the ISO speed.
• When you select 
 (Auto) or 
 
(High ISO Auto), the camera sets the 
optimal ISO speed for the light level 
when shooting. As the ISO speed will automatically be raised in 
dark places, shutter speed will increase, reducing camera shake 
and subject blurring.
• Select 
 to put priority on image quality.
• When you select 
, the camera also detects motion and sets 
the optimum ISO speed. As the shutter speed becomes even 
faster*, camera shake and blurred photos caused by subject 
movement will be reduced even more than when shooting the 
same scene in Auto.
* Noise may increase in the captured image compared to 
.
z
The camera automatically applies noise reduction 
processing when you shoot at a high ISO speed.
z
If the camera is set at 
 or 
, the ISO speed automatically 
set by the camera will be displayed when pressing the 
shutter button halfway or in playback information.