A: Manual Exposure - Canon EOS 5D Mark III Instruction Manual

a: Manual Exposure

In this mode, you set both the shutter speed and aperture as desired. To
determine the exposure, refer to the exposure level indicator in the
viewfinder or use a commercially-available exposure meter. This
method is called manual exposure.
* <a> stands for Manual.
Standard exposure index
Exposure level mark
If ISO Auto is set, the ISO speed setting will change to suit the shutter speed
and aperture to obtain a standard exposure. Therefore, you may not obtain
the desired exposure effect.
168
Set the Mode Dial to <a>.
1
Set the ISO speed
2
Set the shutter speed and aperture.
3
To set the shutter speed, turn the <6> dial.
To set the aperture, turn the <5> dial.
If it cannot be set, set the <R> switch
to the left, then turn the <6> or <5> dial.
Focus the subject.
4
Press the shutter button halfway.
The exposure setting will be displayed
in the viewfinder and on the LCD panel.
The exposure level mark <h> indicates
how far the current exposure level is
from the standard exposure level.
Set the exposure and take the
5
picture.
Check the exposure level and set the
desired shutter speed and aperture.
If the exposure compensation amount
exceeds ±3 stops, the end of the exposure
level indicator will display <I> or <J>.
.
(p.126)