Setting The Iso Speed; Iso Speed Extension - Canon EOS 1D Mark II N Instruction Manual

Setting the ISO Speed

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 coarse 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 1/3-stop
increments.
At higher ISO speeds and higher ambient temperatures, the image will
have more noise.
High temperatures, high ISO speeds, or long exposures may cause
irregular colors in the image.

ISO speed extension

1
Hold down the <
buttons simultaneously.
The current ISO speed will be
displayed on the LCD panel.
2
Turn the <
While looking at the LCD panel or
viewfinder, turn the <
the desired ISO speed appears, then
let go of the buttons.
The ISO speed will be set.
Under the <
expansion] to <On> to enable ISO 50 or
3200 to be set. When set, ISO 50 is
indicated by
E
> and <
6
> dial.
6
z
> tab, set [ISO
and ISO 3200 by
L
Q
>
> dial until
.
H
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