Setting The Iso Speed - Canon EOS 1D Instruction Manual

Z: 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 3200 in 1/3-stop
increments.
Using a high ISO speed or shooting in high-temperature conditions may
result in more grainy images.
High temperatures, high ISO speeds, or long exposures may cause
irregular colors in the image.
With C.Fn I -3 [Set ISO speed range], the ISO speed range can be
extended to ISO 50 (L) to 6400 (H). (p.158)
56
Press the <Z> button.
1
The current ISO speed will be
displayed on the top LCD panel and
in the viewfinder.
Set the ISO speed.
2
Turn the <6/5> dial to set the ISO
speed.
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