Canon EOS Digital Rebel XT EOS DIGITAL Rebel XT / EOS 350D Instruction Manual - Page 55

Setting the ISO Speed

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Z Setting the ISO SpeedN The ISO speed is a numeric indication of the sensitivity to light. A higher ISO speed number indicates a higher sensitivity to light. Therefore, a high ISO speed is suited for low light and moving subjects. However, the image may look more grainy with noise, etc. On the other hand, a low ISO speed is not suited for low light or action shots, but the image will look finer. The camera can be set between ISO 100 and 1600 in 1-stop increments. ISO Speed in the Basic Zone Modes The ISO speed is set automatically within ISO 100-400. ISO Speed in the Creative Zone Modes You can set the ISO speed to [100] [200] [400] [800] [1600]. 1 Press the button. s The [ISO speed] menu will be displayed. 2 Set the ISO speed. ¡ Press the key to select the desired setting, then press . ¡ At higher ISO speeds and higher ambient temperatures, the image will look more grainy. ¡ High temperatures, high ISO speeds, or long exposures may cause irregular colors in the image. 55

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55
The ISO speed is a numeric indication of the sensitivity to light. A higher
ISO speed number indicates a higher sensitivity to light. Therefore, a
high ISO speed is suited for low light and moving subjects. However, the
image may look more grainy with noise, etc. On the other hand, a low
ISO speed is not suited for low light or action shots, but the image will
look finer. The camera can be set between ISO 100 and 1600 in 1-stop
increments.
The ISO speed is set automatically within ISO 100-400.
You can set the ISO speed to [
100
] [
200
] [
400
] [
800
] [
1600
].
1
Press the <
W
Z
> button.
s
The [
ISO speed
] menu will be
displayed.
2
Set the ISO speed.
¡
Press the <
V
> key to select the
desired setting, then press <
0
>.
Z
Setting the ISO Speed
N
ISO Speed in the Basic Zone Modes
ISO Speed in the Creative Zone Modes
¡
At higher ISO speeds and higher ambient temperatures, the image will
look more grainy.
¡
High temperatures, high ISO speeds, or long exposures may cause
irregular colors in the image.