Canon EOS Rebel XS User Manual - Page 57

Changing the ISO Speed

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Z: Changing the ISO SpeedN Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light level. In the Basic Zone modes, the ISO speed is set automatically. 1 Press the button. (9) X [ISO speed] will appear. 2 Select the ISO speed. Turn the dial or press the key to select the ISO speed. You can also look at the ISO speed in the viewfinder while turning the dial. ISO Speed Guide ISO Speed Normal (No flash) 100/200 Sunny outdoors 400/800 1600 Overcast skies, evening Night or dark indoors Flash Range The higher the ISO speed, the farther the flash range will be. (p.58) About Auto ISO This mode sets the ISO speed automatically between ISO 100 - 800 to suit the shooting mode and ambient light level. For flash and (manual) exposures, ISO 400 is set. When you press the shutter button halfway, the automatically-set ISO speed is displayed in the viewfinder and on the LCD monitor. Using a high ISO speed or shooting in high-temperature conditions may result in more grainy images. Long exposures can also cause irregular colors in the image. 57

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57
Set the ISO speed (image sensor’s sensitivity to light) to suit the
ambient light level. In the Basic Zone modes, the ISO speed is set
automatically.
1
Press the <
Z
> button.
(
9
)
[
ISO speed
] will appear.
2
Select the ISO speed.
Turn the <
6
> dial or press the
<
V
> key to select the ISO speed.
You can also look at the ISO speed in
the viewfinder while turning the
<
6
> dial.
ISO Speed Guide
About Auto ISO
This mode sets the ISO speed automatically between ISO 100 - 800 to
suit the shooting mode and ambient light level. For flash and <
a
>
(manual) exposures, ISO 400 is set. When you press the shutter button
halfway, the automatically-set ISO speed is displayed in the viewfinder
and on the LCD monitor.
Z
: Changing the ISO Speed
N
ISO Speed
Normal (No flash)
Flash Range
100/200
Sunny outdoors
The higher the ISO speed, the
farther the flash range will be.
(p.58)
400/800
Overcast skies, evening
1600
Night or dark indoors
Using a high ISO speed or shooting in high-temperature conditions may
result in more grainy images. Long exposures can also cause irregular
colors in the image.