Canon C12-8453, Service Manual

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4) The screen on the right appears
when dark adjustment is completed.
Shading adjustment setting is carried
out. Mount the lens on the camera
and set the camera on the light
source stand. When setting is
completed, press the RETURN key to
start shading adjustment.
After shading adjustment is
completed, the AF Adjustment menu
is redisplayed.
Part 4: Electrical Adjustment
4-21
: Mount the lens and carry out the adjustment except for the dark
adjustment. (The lens may be mounted during the adjustment). During the
shading adjustment, the lens is stopped down by the adjustment software to
minimize surface reflection inside the AF sensor. So, lens stopping down
must function correctly.
Prevent the intrusion of powerful light from the eyepiece.
4 NOTE
AFB3
Basic AF
Adjustment
Shading
LV12
Set the light source as follows:
K value: 12.5
ISO : 100
Attach the lens to the camera and set focus to infinity.
After setting, press the RETURN.
To quit Basic AF setting forcefully, press ESC.