Canon 1D X - Manual (Page 124)

124
Set the ISO speed (image sensor’s sensitivity to light) to suit the
ambient light level. Regarding the ISO speed during movie shooting,
see pages 224 and 226.
1
Press the <i> button. (9)
2
Set the ISO speed.
While looking at the top LCD panel or
in the viewfinder, turn the <6> or
<5> dial.
ISO speed can be set within ISO 100
- 51200 in 1/3-stop increments.
“A” indicates ISO Auto. The ISO speed
will be set automatically (p.125).
ISO Speed Guide
* Higher ISO speeds will result in grainier images.
i : Setting the ISO Speed
ISO Speed
Shooting Situation
(No flash)
Flash Range
L, 100 - 400 Sunny outdoors
The higher the ISO
speed, the farther the
flash range will extend.
400 - 1600 Overcast skies or evening time
1600 - 51200, H1, H2 Dark indoors or night
If [z2: Highlight tone priority] is set to [Enable], you cannot select “L”
(equivalent to ISO 50), ISO 100/125/160, “H1” (equivalent to ISO
102400), and “H2” (equivalent to ISO 204800) (p.150).
Shooting in high temperatures may result in images that look grainier.
Long exposures can also cause irregular colors in the image.
When you shoot at high ISO speeds, noise (such as dots of light and
banding) may become noticeable.
Shooting long exposures at high ISO speeds may result in irregular
colors in the image.
When shooting in conditions that produce an extreme amount of noise,
such as a combination of high ISO speed, high temperature and long
exposure, images may not be recorded properly.
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