Canon SPEEDLITE 540EZ Service Manual page 13

Part 1: General Information
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19
7.4
7.5
7.6
Teal
7.8
7.9
Flash control aperture setting (@: Setting factor)
EOS "Body" Metering
Camera Exp. Mode
Shutter-priority AE
Aperture-priority AE
540EZ Preflash
Program AE (full)
Manual
Synchronous shutter speed setting (EOS-1N)
Camera Exp
Shutter-priority AE 1/250* sec. or slower
Aperture-priority AE Automatic 1/250* - 30"
Program AE (full)
Manual
Automatic 1/250* - 1/60
Manual
1/250* sec. or slower - Manual setting
* The maximum synch speed is determined by the EOS body in use.
Exposure control modes (1) A-TTL auto flash
(2) TTL auto flash
(3) Manual
Flash duration control TTL auto flash control by EOS body control and off-the-
film metering
Flash exposure check OK: After shooting, the green confidence lamp lights for
about 2 seconds.
NG: The confidence lamp does not light.
Flash exposure compensation
(1) Auto
Daylight fill-in flash and auto reduction control for
high brightness controlled by each EOS body.
(2) Manual compensation by operating the 540EZ
Manual compensation in the range of +3 stops in
1/3-stop increments (When the shooting mode of the
camera is not in the full auto mode, the auto flash
exposure level is compensated.)
(3) Manual compensation by operating the EOS-1N or
EOSS
Electronic dial operation on the body.
* When items (2) and (3) are simultaneously set,
item (2) has priority.
Flash Coupling Range (1) A-TTL normal firing: 0.5 to 30 m
(2) A-TTL low-voltage firing: 0.5 to 7.5 m (min) to 21 m
(max)
Coupling range display Display in the LCD panel.