Canon EOS 7D - Manual (Page 64)

64
Set the ISO speed (image sensor’s sensitivity to light) to suit the
ambient light level. In the fully-automatic modes (1/C), the ISO
speed is set automatically (p.65).
1
Press the <m> button. (9)
2
Set the ISO speed.
While looking at the LCD panel or
viewfinder, turn the <6> dial.
It can be set within ISO 100-6400 in
1/3-stop increments.
With “A” selected, the ISO speed will
be set automatically (p.65).
ISO Speed Guide
i : Setting the ISO SpeedN
ISO Speed
Shooting Situation
(No flash)
Flash Range
100 - 400 Sunny outdoors
The higher the ISO speed,
the farther the flash range
will be (p.116).
400 - 1600 Overcast skies or evening time
1600 - 6400, H Dark indoors or night
If [8C.Fn II -3: Highlight tone priority] is set to [1: Enable], ISO 100/
125/160 and “H” (equivalent to ISO 12800) settings cannot be set
(p.225).
Using a high ISO speed or shooting in high-temperature conditions may
result in more grainy images. Long exposures can also cause irregular
colors in the image.
When you shoot at high ISO speeds, noise (horizontal banding, dots of
light, etc.) may appear.
With [8C.Fn I -3: ISO expansion] set to [1: On], “H” (equivalent to ISO
12800) can also be set (p.222).