Setting The Iso Speed - Canon EOS-1Ds Instruction Manual

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Setting the ISO Speed

The ISO speed is a numeric indication of the sensitivity to light. (→p.154)
A higher ISO speed number indicates a higher sensitivity to light. Therefore, a high ISO speed
is suited for moving subjects or taking pictures in low-light conditions. However, the image will
contain more noise to make it look coarse or grainy. On the other hand, a low ISO speed will
make the image look finer, but it is not suited for freezing motion or shooting in low light.
The camera can be set to any of the following ISO speeds: ISO 100, 125, 160, 200, 250, 320,
400, 500, 640, 800, 1000, or 1250.
When higher ISO speed is set or the camera is used under higher temperature,
more noise will appear in the image. In this case, image file size will grow and fewer
images will be recorded on the CD card. Number of shots remaining can be
confirmed on the top LCD panel. (→p.27)
With C.Fn-03-1, you can set sensitivity at ISO 50. (→p.133)
With C.Fn-08-1/2, you can display the ISO speed instead of the number of
remaining shots. (→p.135)
Hold down the <
1
tons simultaneously.
s
The <
> icon and current ISO speed will be
displayed on the top LCD panel.
While still pressing the two buttons, turn
2
the <
> dial to select the desired ISO
speed displayed.
Let go of the buttons.
3
s
The new ISO speed will be set.
> and <
> but-
2
49

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