Precautions
(1) The 540EZ contains high-voltage
circuits. Do not attempt to disassem¬
ble the flash unit yourself. Always
take it to an authorized Canon ser¬
vice facility for repair.
(2) The 540EZ is not resistant to water
and should not be used outdoors in
snow or rain.
If momentarily
exposed to snow, rain or water
spray, immediately wipe water drops
from the flash unit's surface with a
dry cloth.
(3) Always slide the 540EZ's power
switch to the OFF position after use.
If left on, the flash circuitry will drain
the battery power.
(4) Be sure to keep the 540EZ out of
direct sunlight, and away from "hot
spots" such as the trunk or rear win¬
dow shelf of a car. Extended expo¬
sure to high temperatures can
cause the flash unit to malfunction.
• Throughout this manual special pre¬
cautions relating to the various flash
unit operations are enclosed in
boxes marked with the following
symbols.
O : Cautionary measures to
ensure proper use and pre¬
vent undesired results or mal-
_
function.
Q : Reference information for
helping you gain maximum
,, /
functionality from the 540EZ.
: Helpful hints for using the
540EZ productively and with
maximum efficiency.
Contents
II. Changing the
Flash Settings
III. Basic Flash
Operation
IV. Flash Operation
in Various
Shooting Modes
V. Advanced Flash
Techniques
Speedlite
System
4
1. Loading the Batteries.
5
3. Mounting the Flash.6
4. Setting the Main Switch.
7
1. Flash Coverage Angle (Zoom Button)
• Automatic Zoom Operation.8
• Using the Wide Panel.9
Scenes.12
5. Ready Lamp and Test Firing.
7
2. Flash Mode Button.10
3. Film Speed Setting.10
4. Display Panel Illumination.
10
13
2. Aperture-priority AE Mode.
14
3. Shutter-priority AE Mode.
15
4. Slow Synchro Photography.16
1. Flash Exposure Compensation.17
2. Manual Flash Shooting.18
3. Stroboscopic Flash.
19
Bursts, and Power Level.20
Flash.20
• Maximum No. of Continuous Flash
Bursts.21
• External Power Supplies.27
• Multiple Flash Accessories.27
Troubleshooting.28
Specifications.29
4. Bounce Flash.22
• 540EZ Functions When Used In A
Multiple Flash Configuration.26
540EZ Function Chart For
EOS Cameras.
31
3
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