Canon 0020C003 Digital Camera User Manual

Set the ISO speed (image sensor’s sensitivity to light) to suit the
ambient light level. In Basic Zone modes, the ISO speed is set
automatically (p.134).
Press the <g> button (9).
Set the ISO speed.
While looking at the LCD panel or in
the viewfinder, turn the <6> or
<5> dial.
A” indicates ISO Auto. The ISO
speed will be set automatically
ISO Speed Guide
* High ISO speeds will result in grainier images.
Changing the ISO Speed to Suit the Light
ISO Speed
Shooting Situation
(No flash)
Flash Range
ISO 100 - ISO 400 Sunny outdoors The higher the ISO
speed, the farther the
flash range will extend
ISO 400 - ISO 1600
Overcast skies or evening time
ISO 1600 - ISO 12800, H
Dark indoors or night
Under [54: Custom Functions (C.Fn)], if [2: ISO expansion] is set to [1:
On], “H” (equivalent to ISO 25600) can also be selected (p.352).
Under [54: Custom Functions (C.Fn)], if [3: Highlight tone priority] is
set to [1: Enable], ISO 100 and “H” (equivalent to ISO 25600) cannot be
selected (p.353).
Shooting in high temperatures may result in images that look grainier.
Long exposures can also cause irregular colors in the image.