Canon EOS-1V Service Manual page 94

Part 4: Electrical Adjustments
• E-TTL Precision Check
CAUTION
PURPOSE
To check the precision of the E-TTL flash metering sensor. As with SPC
Positioning, this procedure enables a simple check of the E-TTL flash metering.
STANDARDS
Average +/-0.25 EV
PREPARATIONS
1) Use EF-5000 or EF-8000 and set the camera against the light source.
ADJUSTMENT PROCEDURE
1) On the Flash Metering Adjustment
Menu, select [F5] E-TTL Precision
Check.
2) The brightness received by the E-TTL
flash metering sensor (AE sensor) is
displayed. Change the brightness of
the EF-5000 or EF-8000 and see if
the sensor's brightness meets the
standard.
This is a simplified check procedure. For an underexposure or overexpo-
sure adjustment to be made according to the user's preference, follow the
procedure which uses a flash in a darkroom.
4-40
ETTL_SPC
E-TTL Accuracy Check
S14 S12
00.0 00.0
S16
00.0
S8 S7
00.0 00.0
S4 S2 S0 S1
00.0 00.0 00.0 00.0
S6 S5
00.0 00.0
S11 S9
00.0 00.0
Check the E-TTL(SPC) output for each britness.
If this value is normal,
the flash metering level is also normal.
Press RETURN key to return to Flash Metering Menu.
S13
00.0
S15
00.0
S3
00.0
S10
00.0