I: Setting The Iso Speed - Canon EOS 6D Basic Manual

i: Setting the ISO SpeedN
Set the ISO speed (image sensor's sensitivity to light) to suit the
ambient light level. In Basic Zone modes, the ISO speed is set
automatically.
ISO Speed Guide
ISO Speed
L, ISO 100 - 400
ISO 400 - 1600
ISO 1600 - 25600, H1, H2
* High ISO speeds will result in grainier images.
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Press the <i> button.
1
Set the ISO speed.
2
While looking at the LCD panel or the
viewfinder, turn the <6> or <5>
dial.
ISO speed can be set within ISO 100
- 25600 in 1/3-stop increments.
"A" indicates ISO Auto. The ISO
speed will be set automatically. You
can also press the <B> button to
set it to "A (AUTO)".
Shooting Situation
(No flash)
Sunny outdoors
Overcast skies or
evening time
Dark indoors or night
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Flash Range
The higher the ISO speed,
the farther the flash range
will be.