Canon 540EZ - Speedlite - Hot-shoe clip-on Flash User manual

Canoil
SiPEEDLITE
s40Ez
'-!
LCtrx
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{
frnank
you
-
for
purchasing
this
Canon
product.
The CanonSpeedlite
540E2
is a high-performance
flashunitdesigned
for use
withEOSSeriescameras.
fhe 540E2 incorporatesa rich selec-
tionof features,includingan autozoomfunction,
TTL automatic flash
exposurecontrol,
and powerful
light
output
sufficient
forvirtuallyany
shootingsituation.
When
used
with
an EOScamera,
Ihe540E2 iscapa-
bleof everything
fromsimple, automated
flash
shooting
to advanced
techniques
suchasflash exposure
compensation,automatic
flash
control
basedon user-selected
shutterspeedandlor
aperturesettings,
manual
firingwitheightselectable
flash
output
levels,
andintricatemultiple-flash
lighting
setupsusing
EOSmulti-flashaccessories.
a 54OEZ
Features
(1) A-TTL Automatic Flash Control
A-TTL
automatic
flashcontrolstands
forAdvanced
ThroughTheLens
automat-
ic flash control.
When used
withan EOScamera setto ProgramAE or Full
Automode,the camera
andflashunit
worktogetherto automaticallysetthe
appropriate
apertureand
shutterspeed
for
proper
flashexposure
forindoor
and
low-lightscenesas
well
asbacklitsubjects
in
daylight.
(2) TTL Automatic Flash Control
TTLautomatic
flash
shooting
ispossible
inothershooting modes
such
asaper-
ture-priority
AE,shutter-priority
AEormanual
exposure
mode.Whenlhe
54OEZ
iscombined
with
aperture-priority
AE for an indoor shot
or a nightscene,the
cameraautomatically
sets a slow shutter
speedto properly expose
the back-
ground
whiletheflashfirestoproperly expose
the
subject.
(3) Three-Zone Flash Metering for Multi-PointAutofocus Systems
Whenthe54OEZ
isusedwithanEOScamera
thathasmultiple
focusing
points,
theflashautomatically
weightstheexposure
inthearea oftheactive
focusing
point
using
the
camera's
three-zone
flashmetering
system.
(4) Automatic Flash Exposure Confirmation
Aftera picture
istakenusing flash,an LED onthebackoftheflashunit
lights
fortwoseconds
to indicatethatproper
flash
exposure
wasachieved.
(5) Auto Zoom
The flash head automatically
zooms to set the properflash coverageangle
according
to the lensfocallength.Settings
from24mmwide-angleto 105mm
telephoto
are possible
withthe flashalone, and coverage
for ultra-wide-angle
1 lensesdownto 18mmispossible
using
thebuilt-in
wide
panel.
Theflashcover-
;} rS" anglecan
alsobeset
manuallytoany desired
position.
\
(6) Flash Exposure Compensation
fhe 540E2allows theflash exposure
to be adjustedindependentlyof the cam-
era,
providing
acompensation
range
of
+3
stops
in1/3-stop
increments.
(7) Manual Flash Control at Eight Output Levels
Theflash
output
canbesetmanually
toanyofeight
power
levels,fromfull
(1/1)
power
to 1/128power.
(8) Bounce Flash
Theflash
head
canbe tiltedupwardor canbe surveledto therightor leftfor
bouncingtheflash offof nearbysurfacessuchas a ceilingor wallto create
a
softer
lighting
effect.
Theflashheadcanalsobetilted
7' downward forclose-up
shots.
(9) AF Auxiliary Light Corresponding to Five Focusing Points
The
built-in
AFauxiliary lightautomatically
firesinlow-light
and
low-contrastsit-
uations
toaidthecamera's
autofocussystem.
When
combined
withtheEOS-1
N, the AF auxiliary
light
emissionautomatically
correspondsto the camera's
five
autofocusing
points.
(10)
Stroboscopic Flash
The 540E2can be setto automatically
fireseveral
flashbursts duringa single
exposure,
creatinga stroboscopic
effectthatrecordstheflowof subject
move-
ment.Thestroboscopic
firing
speedcan
befreelysettofrequenciesasfast as
100burstsoer
second.
(11)
FlashSync
Timing
The synctimingcan be setto either
first-curtainsync,
whichfiresthe flashas
soonas
the
shutter
isfullyopened,orsecond-curtain
sync,
whichfirestheflash
immediatelybefore
theshutter
closes.
(12)SE(Save Energy)Function
When the flash is set to SE mode,the powerautomatically
turns off after90
secondsofnon-operationinordertoconserve
battery
power.
(13)Rich
Selectionof External
PowerSupplies
Threetypesof external
power
suppliesare available,
including
the Compact
Battery
PackE.
(14)System Accessories for Professional Flash LightingTechniques
Canon's
line
ofdedicated
flashaccessories
includetheOff-CameraShoe
Cord
2
forseparating theflashfromthe camera,aswell
as adaptersandcords
forcon-
figuringelaborate
multiple{lashsetups.
Even
when
using
morethanone
flash,
theflashexposurecan
becontrolledautomatically
by
theEOSTTLsystem.
a Theinstructions
in
this
manualassumeuse
withtheEOS-1
Ncamera.
) Flashfunctionsand
theinformationdisplayed
inthe LCD panel
maydiffer
when
used
withotherEOScameras.
a When lhe 54OEZ
is usedwith a camera
set to Full-Auto
modeor a
Programmedlmage
Control
(PlC)
mode,allflash
functionsarecontrolled by
thecameraand
functionsettingson
the
flashunit
itself
arecanceled.
i
2fr&
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(2)
b
Precautions
G
(1) The 54OEZcontainshigh-voltage
circuits.
Do
notattemottodisassem-
bletheflashunit
yourself.
Always
takeit to an authorized
Canonser-
vicefacility
forrepair.
The 54OEZis not resistant
to water
andshouldnot
be used
outdoorsin
snow or rain. lf momentarily
exposed
to snow,rain
or water
spray,
immediately
wipewater
drops
from
the flashunit'ssurfacewitha
drycloth.
Always
slidethe 540E2's
power
switchto the OFFposition
after
use.
lf lefton,
the
flash
circuitry
will
drain
thebattery
power.
Be sureto keepthe 540E2
outof
directsunlight,
and awayfrom"hot
spots"such
asthe trunkor rearwin-
dow shelfof a car. Extended
exoo-
sure to high
temperatures
can
causetheflash
unittomalfunction.
O Throughout
this
manualspecial
pre-
cautionsrelatlng
tothevarious
flash
unitoperations
are enclosedin
boxesmarked
withthe following
symbols.
Q : Cautionary measures to
ensure
proper
useand pre-
vent
undesiredresults
ormal-
function.
ffi : Reference
information
for
helping
yougain
maximum
\,, functionality
from
the
540EZ'
)@!: Helpful
hintsfor usingthe
540E2 productively
and with
maximum
efficiencv.
(3)
(4)
' '1ilF
1r$4r@Ffel{r,r184fW1
Contents ',fr
GGN Nomenclature
.............'.... ....4
l. Preparations
for
Use
...7
...8
...8
...8
5.
6.
1.
2.
3.
4.
Loading
theBatteries
UsinganExternal
Power
Supply
Mounting
theFlash
SettingtheMain
Switch
ReadyLamp
andTestFiring..........
RecycleTime............
O Normal Firin9...........
O Quick
Firin9...........
.........5
.........6
.........6
.........7
fir.
W:ilt
Changifi'$
Flash
Settingi
2.
3.
4.
FlashModeButton ........10
Film
Speed
Setting ........10
Display
Panellllumination
.................
1
0
AF
AuxiliaryLight...............................1
0
1. FlashCoverageAngle
(Zoom
Button)
andUseoftheWide
Pane1..................8
O Automatic Zoom
Operation.............8
O ManualZoom
Operation...,.............9
O Using theWide
Pane1......................9
lll.BasicFlash
Operation .11
.12
1FullyAutomatic
Flash
Operation....
O Fill-in
FlashForBright
Outdoor
Scenes
V.Flash
Operation
, inVarious
W;
ShootingModes
4. SlowSynchroPhotography..........
.16
Manual
ExposureMode......
Aperture-priority
AEMode..
Shutter-priorityAEMode....
..............1
3
..............14
..............1
5
1
2
3
V.Advanced
Flash
Techniques
BounceF|ash............
O CatchlightPhotography.........
Close-upFlashPhotography.....
Second-Curtain
Synch
ronization
Multiple
Flash
Setups
O MultipleFlash
Connection
Example
a 54OEZFunctionsWhen
UsedInA
Multiple
Flash
Configuration..........26
1. Flash Exposure
Compensation.........17
2. ManualFlash
Shootin9......................1
8
3. StroboscopicF|ash
............................1
I
O SettingtheFiring
Frequency,
No.
of
Bursts,
andPowerLevel
...............20
O TakingPictures
with
Stroboscopic
Flash
........... ..............20
O Maximum
No.
ofContinuousFlash
.21
......22
......23
......24
......24
......25
5
6
7
l.
Canon
speeoliiB
540E2
System.*
O External
Power
Supplies....
O Multiple Flash
Accessories.
Troubleshooting..............
Specifications..................
.27 540E2Function
ChartFor
..27 EOS
Cameras..........................,..............31
..28 O ExposureWarnings.......................31
..25
3
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Nomenclature
O FrontView
Flash Head
Pre-flash Emitter
Pre-flash Receptor
AFAuxiliaryLight
Emitter
Mounting Foot
A "m/ft"
switchislocatedinside
thebat-
tery chamber.
Use this switchto
changethecouplingrange
display
unitstometers
or
feet
asdesired.
Built-inWide Panel
Battery Cover
External Power
Supply Socket
(with cover)
Lock Nut
Direct-Coupled
Contacts
Sync
Timing
Buttons
O RearView
: Plus
(+)
Button
LCD Panel
llluminationButton
Flash Mode Button
ReadyLamp/Test
FiringButton
Flash
Exposure
'Check
Lamp
O LCDPanel
Flash
Exposure
CompensationIndicator
A-TTL.TTL
Automatic
Flash Mode Indicator
Manual Flash Mode
Indicator
Multiple (Stroboscopic)
Flash Mode Indicator
Coupling Range
Distance Scale
Up/Down Bounce
Latch
LCD Panel
SelecVSet Button
Zoom Button
Main Switch
O : Power Off
| : Power On
SE : Save Energy
Position
Flash Exposure Compensation
AmounVManual Flash Power Level
Manual Zoom Indicator
ApertureVal
uelStroboscopic
FlashFrequency
Lock Pin Zoom . Focal Length
Indicator
Bounce Flash Indicator
B. Up/LefvRight
Bounce Indicator
i catchtight setting
lndicator
of 7" Down Indicator
Second-Cuftain
Sync Indicator
4No, of Stroboscopic
Flash Bursts
IHH
mm
,--vt @+Hllffia i
MULTI
IFH-HH'H
rrz
Dr.i
0.50.7 1 1.5 2 3
IIIIIIIIIITI
1.72-y4 5 7 10
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1.Loading
the Batteries
The
540E2usesfourAA-size
batteries.
Useeither
of
thefollowing
battery
types:
(1) Four
AA-size
alkalinebatteries
(LRO)
(2) Four
AA-sizeNi-Cd
batteries
(KR15/51)
1 Open
the
battery
coverby
slidingit
downward
slightly
andthen
swingingit
outward.
2 Load
the
batterieswith
their+
and
- endsoriented
asshown
inthediagraminside
thebat-
tery
chamber.
3 Closethe
battery
cover.
t=t
LIJ
Battery Notes
. Use
fournewbatteriesofthesametype,
andalwaysreplace
allfour
batteries
at
the
sametime.
. AA-sizemanganese
batteries
(R6)
canalso
beused,butwill
provide
fewer
flash-
esthan
alkalineorNi-Cd
batteries.
. Theterminals
ofsomeAA-sizeNi-Cd
batteries
areof different
shapethan
stan-
dard
AA-size
batteries.Make
surethebatteriesareusable
before
purchasing.
. When
youwillnotuse
theflash fora long
period
oftime,
besureto remove
the
batteries
andstorethem
separately.
. In
coldenvironments,
prepare
twosets
offully-charged
Ni-Cd
batteries
andkeep
onesetina warm
location
suchas an inside
pocket.
When
thesetintheflash
becomesweak,
exchangeitwiththewarm
set.
Theweak
setcanbe usedagain
later
after
itreturns
toawarmertemperature.
. Dirty
battery
contacts
canprevent theflow
ofelectrical
power
totheflash
circuit-
ry.To prevent
corrosionand dirtbuilt-up,wipethe contactswitha cleancloth
eachtime
youexchangethebatteries.
. AA-sizelithium
batteries
(FRG)
canalso
beused
in
the
54OEZ.
BatteryLifeand RecycleTime:
Inthebattery
life
column,figures
ontheright
indicate
thenumber
of burstsinA-TTL
mode,
and
figures
onthe
left
indicate
the
numberof
burstsinmanual
full-power
(1/1)
mode.
In
therecycle
timecolumns,figures
ontheleftindicate
the
recycle
timeinA-TTLmode,
and
figures
onthe
right
indicate
therecycle
timeinmanualfull-power
(111)
mode.
When
using
anexternal
power
sourcewiththe
54OEZ,note
thefollowing
cautions.The
batterylifewill
depend
onthebatteriesinstalled
inthe 540E2
andnot ontheexternal
power
supply.
Use of internal batteries with an external power supply*
' Batteries
mustbe loaded
intheflashunitevenwhen usingan external power
supply
in orderto supply
powerto the flashcircuitry.
Makesure batteriesare
loadedin
theflash
unitatalltimesduring
use.
. Whenusingan external
power
supply,
both
theinternal
batteries
andtheexter-
nalpower
supplyareusedforflash
charging.
Accordingly,itispossible
thatthe
internal
batteries
will becomeexhausted
before
the external
powersupplybat-
tery.Besure
toalwayscarry
a spare
setofAA-size batteries
fortheflash
unit.
Battery
type Batterylife
(No.
ofbursts) Recycle time (seconds)
Quick flash Normal flash
AA-size alkaline
(LR6) 1
00-700 02 - appx2 02-13
AA-sizeNi-Cd
(KR1
5/51
)45-300 02- appx1
502- 7
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Thefolowing
externar
power
suppries
areavailable
forthe 540E2'
For
detairs
on
use,
read
the
instructions
provided
with
the
powersupply'
(1) ComPact
BatterY
Pack
CP-E2
. This
external
battery
pack
uses
six
AA-size
alkaline
(LR6)
or
Ni-cd
batteries'
(2) Transistor
Pack
E
. This
external
battery
packuses
the
canon
Battery
Magazine
TP'
which
holds
six
C-size
alkaline
batteries
(LR14)
. The Ni-CdPack TP can also be used'
()
. canon recommends
that
AA-size
lithium
batteries
notbe used
inthis
product
since
its
initial
high
voltage
may
cause
damage
tothe
product'
. canon recommends
theur" of canon-dedicated
power
packs. Using
a non-
canon
power
pack
may
cause
damage
to"(SPEEDLITE)
540E2'
1 Turn
the lock
nut
several
times
in thedirection
of the
arrow
toloosen.
2 Slide
the
flash
unit's
mounting
- foot
fullY
into
the
camera's
accessory
shoe
until
itstoPs'
3 Turn
the lock
nutin
theoPPo-
Y sitedirection
to secure
the
flash
firmlY
to the accessory
shoe.(The
lock
Pin
Protrudes
fromthe bottom
of thefootto
lock
the
flash
in
Place.)
. To remove
the
flash,
loosen
the
lock
nutbY
turning
itall
the
waY
until
it stoPs,
then
slide
the
mounting
foot
outof the acces-
sory
shoe.
t=l
t3
Even
though
lock
pinholes
are
not
provided
ontheEOS
650,
EOS620'
EOS
750
orEOS
850,
the
540E2can
bemounted
without
any
problem'
-iil I
I lll-
I il| lr-,
+JJl /
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4.Settingthe MainSwitch
The
main
switch
asthree
setting
positions,
asdescribed
below.
O : Turns
the
power
off.
; : Turns
the
power
on.The
power
is
always
onwhen
theswitch
isset
to
this
position.
SE: Turns
the
power
on
and
activates
theSE (Save
Energy)
function.
The SE function
automatically
turns
offthe power
after
90 sec-
ondsof non-operation
to prevent
unnecessary
battery
consump-
tion.The LCD
panel
display
also
goes
off
when
the
SEfunction
activates
Thepower
comes
back
on when
the
camera's
shutter
button
is pressed
halfway
or the
test
firing
buttonis
pressed.
t=
Lit
lf
the
main
switch
issettothe
SEposition
when
using
the
Command
Back
E1's
interval
timerfunction,
power
to theflash
is automatically
turned
on one minute
before
the
picture
is
taken.
-x_
;V-
Mode Memory Function
When
thepower
isturned
off,the
54OEZ's
mode
memory
function
automatically
memorizes
alf
ofthe
flash
unit's
settings
including
theflash
mode,
zoom
position
andflash
exposure
compensation
level.
When
you
turnthe
flash
back
on,
allof
the
settings
are
automatically
restored
tothe
same
state
you
left
them
in.
To make
sure
themode
memory
function
holds
theflash
settings
in memory
whenyou exchange
batteries,
first
turn
offthe mainswitches
on both
theflash
andcamera,
then
exchange
the batteries quickly
by loading
the newbatteries
within
one
minute
afterremoving
the
old
batteries.
5.Heady
Lamp
and
Test
Firing
1 Turn
on the power
by setting
theflash
unit's
main
switch
to
the
lposition.
. The
flash
unit
starts
charging.
When
fully
charged,
the
ready
lamp
lights
up.
2 After
the ready
lamp
tights,
press
the ready
lamp(also
used
as thetest
firing
button)
tomake
sure
theflash
fires.
t=
tll
Test
firing
is notpossible
while
the camera's
metering
timer
is activated
after
pressing
the
shutter
button
halfway.
MODE + SELISET ZOOM
creoo
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6.
Recycle
Time
Short
recycle
times
are
invaluable
infast-changing
situations
where
quick
shooting
isnecessary.
Forthis
purpose,
the540E2
provides
a quick
firing
mode
in addition
to its
normal,
full-power
firing
mode.
In
quick
firing
mode,the
flashcanbe
firedbefore
itisfullycharged
to provide
fastrecy-
cle
times.
Youcan
tell
whether
the
flash
is operating
in normal
firing
mode
orquick
firing
modebythecolor
ofthe ready
lamp,
as described
below.
. Fordetails
on
recycle
timesand
guide
numbers
innormal
and
quick
firing
modes,
refer
to
page
n
inthe
Specifications
section.
O Normal firing
Normal,
full-charge
firing
is
possible
when
the
ready
lamp
lights
red.
O Quick
firing
Whenthe A-TTL
mode
is setandthe camera
is setto single-frame
shooting,
the
pilot
lampturns
green
and
quick
firing
is
enabled.
t=
Lfl
What is a guide number?
The
guide
number
ofa flashunit
isa numerical
indicator
ofits
light
output
capaci-
ty.The appropriate
shooting
distance
or lensaperture
required
for proper
flash
exposure
can
becalculated
from
the
guide
numberusing
the
following
formulas:
Guide
number+shooting
distance
(m)
- proper
aperture
value
Max.shooting
distance
= guide
number+ largest
lensaperture
. The
filmspeed
is
usually
assumed
tobeISO
100when
stating
guide
numbers.
Atdifferent
film
speeds,
the
guide
number
increasesordecreases
accordingly.
1.FlashCoverage
Angle
(Zoom
Button)
and
Use
ofthe
Wide
Panel
The54OEZ
incorporates
an auto
zoom
function
whichautomatically
sets
theflashcoverage
angle
to match
the
focal
lengthofthe lens
mounted
on
thecamera.
Coverage
angles
areavailable
forfocal
lengths
ranging
from
24mm
to 105mm,and
the
coverage
angle
automatically
changes
when
the
lensis
zoomed.
The
flashcoverage
angle
canbeset
either
automatically
or
manually.
Moreover,
a built-in
wide
panel
provides
coverage
forsuper-
wide-angle
focal
lengthsas
short
as18mm.
. When
the
flashcoverage
angle
ischanged,
the
guide
numberalso
changes.
The
relationship
between
theflash
coverage
angleand
the
guide
number
is
shown
on
page
nintheSpecifications
section.
. The
lens
focal
lengthcorresponding
to
thecurrently
set
flash
coverage
angle
is
displayed
inthe
LCD
panel.
O Auto Zoom Operation
Theflashcoverage
angle
is automatically
set according
to thefocal
lengthofthelens
mounted
on
thecam
era,
and
thesetting
isdisplayed
in
the
LCD
panel.
Also,
whenazoom
lens
is
used,
the
flashcoverage
angle
automatically
changes
when
thelens
is zoomed,
andthe newsetting
is
displayed
inthe
LCD
panel.
1 Turnon
the
power
tothecam-
era.
2 Turn
on the power
to the
540E2.
. lf lD
Zoom
isdisplayed
inthe
LCD
panel,
press
the
zoombut-
tonuntil
only
"ZOOM"
isdis-
played.
ATTL Zoom 50 mm
MODE + SEUSET ZOOM
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3Whenthecamera'sshutter
button
responding
to thefocallengthof
LCD
panel.
is
pressed
halfway,the
settingcor-
the
lensin
use
is
displayed
inthe
O Manual
Zoom
Operation
To set
theflash coverageangle
manually,
press
thezoom
button.
Whenthezoombutton
is
pressed,
themanualzoomindicator
El
Zoom
and
theZOOMindicatorboth
appear
inthe
display.
Each
press
of the zoom buttonchanges
the
coverageangle
in
the
following
cycle.
+ El
Zoom J5 mm
+ ElZoom 50 mm
<- ElZoom B0 mm <- ElZoom l0 mm
r) EtZoom lY mm--> ElZoom lE mm
l- Zoom
(automatic
<- ElZoom
105
mm
setting
mm)
Becarefulto selecta setting
thatis equal to or lessthanthe focallengthof the
lens
mountedon the camera.
lf you selecta setting
that is largerthan the focal
length
ofthelens,theresulting
photograph
willbedarkaroundtheedges.
O Using the Wide Panel
By
pulling
outthe
wide
panel
and
lettingit swingdownto coverthe
front
ofthe
flashhead
asshown
in
thediagram,the
flash
canbe
usedto coversuper-wide-angle
focallengths
asshortas18mm.
. The
zoombuttondoesnotfunction
whenthewide
panel
isinuse.
. The wide panel
shouldonly be used
when the flash head is in the normal
(straight
ahead) or 7" downward
position
lf
the
flashheadis
settoa bounce
position
whilethewrde
panel
is
beingused,bothbounced
flash
anddirect
flashmayilluminate
the
subject,creatingan unnatural
effect.
lf th is occu rs,
the entire
LCD
panel
blinksas a warning to
retractthewide
panel.
Be notto useexcessive
forcewhenpulling
outthewide
panel.
. lf thewidepanel
accidentallybreaks
loosefromtheflashunit,
youwillnotbe
ableto operatethe zoombutton.
lf thisoccurs,operationof thezoombutton
canberestored using
thefollowing
procedure:
. Whilesimultaneously
pressing
boththeflashmode buttonandthe
zoombutton,slide the main
switch
from O to | ,and thentothe
SE
position.
. Thiswill restorethe zoombutton
operation,butthebounceindicator
willcontinuetoblink
in
thedisplay.
To repair
the widepanel,
takethe
flash to your nearest
Canon
seruicestation.
(Display
after
zoomoperation
is
restored.)
{)
careful
E
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2.Flash
ModeButton
. A-TTL
is automatically
set
when
the camera
is set
to Full
Auto
mode,a
Programmed
lmage
Control
(PlC)
mode,
Program
AEmode,or DEP
mode.
TTL
isautomatically
set
inothercamera
shooting
modes.
. Whenthe
flash
head
is
set
toa bounce
position
other
thanthe
7"downward
posi-
tion,
the
flashmode
is
set
toTTL
regardless
ofthecamera
shooting
mode.
3.FilmSpeed
Setting
The
filmspeed
is
set
automatically
according
tothe
filmspeed
set
on
the
camera.
Nosetting
is
requiredon
the
flashunit.
4.
Display
Panel
lllumination
The LCD
panel
is equipped
with
an
illumination
function
for
viewing
in low
light.
Whenthedisplay
panel illuminatlon button
is
pressed,
the LCD
panel
lightsup
for approximately
8 seconds.
To
turnoff
the
illumination
before
the
8 seconds
elapse,
press
thedis-
play
panel
illumination
button
agar
n.
5.
AFAuxiliary
Light
Withdark
or low-contrast
subjects,
the
flashunit
automatically
emitsan
AF auxiliary
lightto help
thecamera
focusthesubject.
The540E2's
AF
auxiliary
light
is designed
to correspond
to the EOS-1
N's
five
focusing
points.
Theeffective
operating
rangeof
the
AFauxiliary
Iight
is
0.5
- 15m
I 1.7
- 49.5ftat
thecenter
and
0.7
- 6m
I 23 - 19.8ftat
the
leftand
right
focusing
pointpositions.
Flashcoverage
iseffective
for
lensesas
wide
as
28mm.
. Multi-focusing-point
EOScameras
with
built-in
flashunits
havebuilt-in
AF
auxil-
iarylights
whichoverride
the540E2's
AF
auxiliary
light.
. When
the540E2
is
used
withacamera
that
hasonlya
single
focusing
point,
only
thecenter
AFauxiliary
light
is
used.
. The
AF
auxiliary
light
isemitted
only
when
thecamera
is
set
to
One-shot
AF
mode.
The Speedlite
54OEZ
hasthree
firingmodes:
A-TTUTTL
automat-
icflash
mode,
Manual
(M)
flash
mode,
andStroboscopic
(MULTI)
flash
mode.
Youcanselect
the
desired
modeby pressing
the
flash
modebutton.
Each
press
of
the flash
modebutton
changes
the
flash
mode
inthe
following
cycle:
--) M (Manual
flash) --" MULTI
A.TTL/TTL (Stroboscopic
flash)
---1
ATTL Zoom 50 mm
Pllor e"rv- Or I
10
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