Setting The Iso Speed - Canon EOS 5D MARK III Instruction Manual

ISO" Setting the lSO Speed*
Set the ISO speed (image sensor's sensitivity to light) to suit the
ambient light level. With the <____> mode selected, the ISO speed will
be set automatically (p.125).
Regarding the ISO speed during movie shooting, see pages 221 and 224.
1 Press the <lS0._> button. (_6)
2
Set the ISO speed.
_ While looking at the LCD panel or
viewfinder, turn the <_> 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
(p.125).
ISO Speed Guide
L, 100 - 400 Sunny outdoors The higher the ISO
400 - 1600 Overcast skies or evening time speed, the farther the
1600 - 25600, H 1, H2 Dark indoors or night flash range will extend.
* Higher ISO speeds will result in grainier images.
O ® If [1_!3: Highlight tone priority] has been set to [Enable], you cannot
select "L" (ISO 50), ISO 100t125/160. "HI" (ISO 51200), and "H2" (ISO
102400) (p.146).
Shooting in high temperatures may result in images that look grainier.
Long exposures can a/so cause irregular colors in the image.
When you shoot at high ISO speeds, noise (dots of light, banding, etc.,
may become noticeable.
When shooting in conditions that produce an extreme amount of noise
such as a combination of high lSO speed, high temperature and Ion 9
exposure, images may not be recorded properly.
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