Canon EOS-3 Instructions Manual page 74

Manual Exposure (M): You Set the Shutter Speed and Aperture
Custom Function CF-5 can reverse the functions of the <
CF
See page 110.
Custom Function CF-6 can set the shutter speed and/or aperture increments to full
CF
stops or half stops instead of the standard 1/3 stops. See page 112.
Custom Function CF-5 enables the aperture to be set manually even when the lens
CF
has been detached. See page 110.
74
5 Look through the viewfinder and
press the shutter button halfway.
The shutter speed and aperture are
displayed. On the right of the
viewfinder, the exposure level
indicator indicates the current
exposure level relative to the
standard exposure index.
6 While referring to the exposure
level indicator, set the desired
shutter speed and aperture.
> dial and < > dial.