Iso: Changing The Iso Speed - Canon EOS REBEL T1 i/EOS 500D Instruction Manual

ISO:
Changing the ISO Speed*: _
][111_:11111'
Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light
level. In the Basic Zone modes, the ISO speed is set automatically (p.61).
Press the
<ISO>
button. (66)
• [ISO speed] will appear.
Select the ISO speed.
t$
Turn the
<
B
>
dial or press the
< .....
~
>
key to select the ISO speed.
%:
You can also set the ISO speed in the
viewfinder while turning the
< ~ >
dial.
With "AUTO" selected, the ISO speed
will be set automatically (p.61).
ISO Speed Guide
Shooting Situation
.....
ISO Speed
........
Flash~~nge
(~o
flash)
.....
100 - 200
Sunny outdoors
The higher the ISO speed,
400 - 800 Overcast skies, evening the farther the flash range
1600 - 6400, H Dark indoors or night
will be (p.62).
o
fi~
Under the
[~:
Custom Functions (C.Fn)] menu, if [Highlight tone
priority] is set to [1: Enable], the settable ISO speed range will be ISO
200 - 3200 (p.186).
~
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, light
dots, etc.) may appear.
[l]
Under the
[~:
Custom Functions (C.Fn)] menu, if [ISO expansion] is set
to [1: On], ISO 6400 and "H" (ISO 12800) can also be set (p.184).
60