I: Changing The Iso Speed - Canon EOS Rebel T5i Instruction Manual

i: Changing 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 (p.93).
ISO Speed Guide
ISO Speed
100 - 400
400 - 1600
1600 - 12800, H
* High ISO speeds will result in grainier images.
Under [54: Custom Functions (C.Fn)], if [2: ISO expansion] is set to [1:
On], "H" (equivalent to ISO 25600) can also be set (p.298).
Under [54: Custom Functions (C.Fn)], if [3: Highlight tone priority] is
set to [1: Enable], ISO 100 and "H" (equivalent to ISO 25600) cannot be
selected (p.299).
Shooting in high temperatures may result in images that look grainier.
Long exposures can also cause irregular colors in the image.
92
1 Press the <i> button.
2 Set the ISO speed.
Shooting Situation
(No flash)
Sunny outdoors
Overcast skies or evening time
Dark indoors or night
[ISO speed] will appear.
Press the <U> key or turn the
<6> dial to select the desired ISO
speed, then press <0>.
You can also set the ISO speed in the
viewfinder while turning the <6>
dial.
With [AUTO] selected, the ISO speed
will be set automatically (p.93).
The higher the ISO speed,
the farther the flash range
will extend (p.107).
(9)
Flash Range