Canon EOS 55 Service Manual page 135

Part 3: Repair Information
4.6
SPD POSITIONING
PuRPosE:
To align the center of SPD with the optical axis of the camera.
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Prior to doing this adjustment, do the AE Accuracy Adjustment (F2 on the AE Menu).
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TOOLS:
Personal computer RS-232C cable HS-1/F
Adjustment software (stored on a work disk)
EF-8000 EF50mm f/18 production lens
Tripod SPD positioning mask (use EOS 500 / Rebel X mask)
PREPARATION:
I) Start adjustment program, connect the camera to the computer through the HS-
1/F , and select (F2) AE Adjustment menu screen.
2) Attach the EF50mm f/18 production lens to the camera and fix the camera on
the tripod toward the light source.
3) Attach the SPD positioning mask to the light source of EF-8000 and set the
brightness to LV 15.
4) Set the camera 45cm away from the SPD positioning mask and align the center
of the SPD positioning mask with that of the center SI focus frame in the finder.
Set the lens manually at the closest distance (45cm).
45cm
SPDMask
EV15
Partial Metering
Mark
Fig. 3-48 SPC Positioning
3-44
Focus Mark
(center)