Canon S90 用户手册

76

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Turn the 

Ï ring to choose the ISO speed.

•

Lowering the ISO speed results in sharper images, but there may be an 
increased chance of image blurring in certain shooting conditions.

•

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 coarse. If 

 is insufficient to reduce blurring, you are 

recommended to use 

Changing the ISO Speed

Automatically adjusts the ISO speed to the Shooting mode and shooting 
conditions.

–

Low

High

Fine weather conditions, outdoor shooting.

–

Cloudy, Twilight 

–

Nightscapes, Dark interiors

•

You can also set the ISO speed by pressing the 

m button and choosing 

. Press the 

qr buttons or turn the Ï ring or 

Ê

 dial to choose a 

setting, then press the 

m button again. Press the l button while in 

the setting screen to set 

.

•

When the camera is set to 

, you can press the shutter button halfway 

to display the automatically set ISO speed.

•

In 

 mode (p. 60), depending on the scene, the ISO speed will be set 

higher than in 

A mode.

EC272_CUG-E_CDI-E409.book  Page 76  Thursday, August 27, 2009  3:06 PM

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