Canon 1Ds Digital Camera User Manual


 
47
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.
1
Hold down the <E> and <Q>
buttons simultaneously.
s The current ISO speed will be
displayed on the LCD panel.
2
Turn the <6> dial.
¡Turn the <6> dial until the desired
ISO speed is displayed on the LCD
panel, then let go of the buttons.
s The ISO speed will be set.
Under the <
z> tab, set [ISO
expansion] to <On> to enable ISO 50 or
3200 to be set. When set, ISO 50 is
indicated by L and ISO 3200 by H.
Setting the ISO Speed
ISO speed extension
¡ 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.