Canon Rebel SL1 EOS 100D Instruction Manual page 8

M"
Manual Exposure
You can set both the shutter speed and aperture manually as desired.
While referring to the exposure level indicator in the viewfinder, you can
set the exposure as desired. This method is called manual exposure.
* <M> stands for Manual.
Set the Mode Dial to <M>.
Set the ISO speed (p.98).
_ Set the shutter speed and
aperture.
<8> To set the shutter speed, turn the
<Avl_> + <8>
<_> dial.
To set the aperture, hold down the
< Avl_ > button and turn the < _ > dial.
Standard exposure index Focus the
subject.
Press the shutter button halfway.
The exposure setting will be
displayed in the viewfinder.
The exposure level mark < I>
indicates how far the current
exposure level is from the standard
exposure level.
Set the exposure and take the picture.
Check the exposure level indicator and set the desired shutter
speed and aperture.
If the exposure level exceeds +2 stops from the standard
exposure, the end of the exposure level indicator will display <<>
or <)> in the viewfinder. (On the LCD monitor, if the exposure
level exceeds +3 stops, <<> or <)> will be displayed.)
_"_ If ISO Auto is set, the ISO speed setting wilt change to suit the shutter speed
and aperture in order to obtain a standard exposure. Therefore, you may not
obtain the desired exposure effect.
Exposure level mark
119