Canon EOS 1V, Service Manual, Page: 93 / 240

• E-TTL Level Adjustment
PURPOSE
This corrects the E-TTL flash metering sensor’s level. As with the AE Shift
Adjustment, the flash exposure level can be set to overexpose or underexpose
according to the user’s preference.
STANDARDS
A/-1EV
PREPARATIONS
1) Mount the camera on a tripod and attach an EF 50mm f/1.8 lens and Speedlite.
2) Set the camera to the Program mode.
3) Set the measuring instrument and camera to ISO 100.
ADJUSTMENT PROCEDURE
1) On the Flash Metering Adjustment
Menu, select [F4] E-TTL Level
Adjustment.
2) Select the correction amount with the
cursor.
• The correction amount can be set in
approx. 0.25-stop increments. To set
1-stop overexposure, set it to +1.
3) After the transmission is completed,
release the shutter. Make sure the
flash has fully recycled.
4) If the level meets the standard, press
Return to complete the adjustment.
4-39
Part 4: Electrical Adjustments
Be sure to use an E-TTL Speedlite (550EZ, 380EZ, etc.). CAUTION
ETTL_F2
Use the E-TTL speedlite
and check the image plane light level.
Always turn the Speedlite main switch off once
and then back on.
Check the flash image plane illumination.
(If not, the shutter will not release.)
If it is OK, press RETURN.
If it is not OK, press SPACE bar
and do the adjustment.
E-TTL Level Adjustment
Limit:
±
1.0 EV
ETTL_F1
0
-2 -1 +1 +2EV
E-TTL Level Adjustment
Use E-TTL flash!
Turn Speedlite main switch on and adjust E-TTL Level.
Set standard reflector 2m from camera, and fire flash.
input correction with the cursor keys.
Press RETURN to make correction.
To return to Flash Metering Adjustment menu,
press SPACE bar.
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