Light meters
Sekonic DIGIPRO X-1 L-518 User manual
User manual for Sekonic DIGIPRO X-1 L-518. 42 pages. Read the original PDF, download or print a copy without registration.
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- Brand
- Sekonic
- Model / document
- Sekonic DIGIPRO X-1 L-518
- Document type
- User manual
- Language
- Check the original document
- Pages
- 42
- File size
- 3.7 MB
- Category
- Light meters
- Document date
- Not specified in catalog
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Page 3 · Read text
Contents PartsDesignations............;............................2 LiquidCrystalDisplay ............;'.....4 Mode Selection and OperationReferenceTable ........6 Accessories 1. Lumisphere ..............I 2 . L u m i d i s c . . . . . . . . . . . . . . . . . . 8 3. Reflected-lightfilter ...................9 4. Sync-cord ................9 5 . V i e w f i n d e r . . . . . . . . . . . . . . . . . . . . . . . . . . .1. 0. . . . Preparing the Meter for Operation 1. Insertingthe battery ................11 2. Checkingthe battery... ..............................11 3. Openingthe capsule ................j2 4. Selectingmeasuringmode(1) ...................t3 5. Selectingmeasuringmode(2) . .................14 6. SettingASAsensitivity...............................15 7. Settingshutterspeed ...............16 B. Settingthe beeper ...................16 Wired MeasurementUsing an ElectronicFlash Unit and Sync.Cord... 17 Wireless (Cordless) Measurement Usingan ElectronicFlashUnit ..................20 Integrated Cumulative Measurement Usingan ElectronicFlashUnit ..................22 MeasurementUsing Flash Bulbs ................25 MeasuringAmbientLight ............................28 MeasurementUsinga MovieCamera .........31 MeasuringContrastRatio ..........32 Usingthe CountdownTimer ......94 llluminance(Lux)Measurement..................36 Adjustingthe Balanceof the Meter ............37 MeasuringRange ......38 Careof Your Meter................ .......40 Specifications......... ....................41 www.butkus.usView original page 3
Page 4 · Read text
PartsDesignations
Lumisphere
Whitedot
Lightsensor
Lightsensorswivelhead
Exposurebutton
Liquidcrystaldisplay
Vkey (Down)
Akey (Up)
F/EVkey (F/EVselection)
ST key fl-imerStart/Stop)
PowerON/OFFkey
ASA key (ASAFilmsensitivity)
MIN key flimer setting)
TIF key O/F selection)
Cl key (BeeperOn/Off)
Modekey (Modeselection)
Capsule
Sync-terminal
Lumidisc Reflected-lightfilterView original page 4Page 5 · Read text
Tripodthread
Optionswitch
Batterychamber
Carryingstrapeyelet
Sync-cord
www.butkus.usView original page 5Page 8 · Read text
Accessories 1. Lumisphere Use the lumispherewhen you wish to measureincidentlightfor portraitsand threedimensionalsubjects. (Mounting) To mount.match eitherof the white dots on the lumisphereframe to the white dot on the lightsensor.Gentlyrotatethe spherein the directionof the arrow until it clickssecurelyinto place. . To remove,turn the spherein the oppositedirectionto the arrow. <Taking moasurements) Pointthe lumisphereaccuratelytoward the camerafrom the subjectposition. 2. Lumidisc Use the lumidiscto measureillumination contrastand lux as well as the exposure of singledimensionalsubjects. (Mounting) Sameas for the lumisohere. (Taking measurements) Hold the meter at subject positionand pointthe lumidiscaccuratelytowardthe lightsource.When measuringthe exposureof twodimensionalsubjects, hold the meter at subject positionand oointthe lumidisctowardthe camera.View original page 8
Page 9 · Read text
3. Rellected.light Filter
Use the reflected-lightfilter to measure
the reflectedlight (brightness)of a
subject.Use it to calculatethe relative
brightnessratio (illuminationcontrastof
subject)for adjustinglightingbalance,or
when it is difficultto take incidentlight
measurements.
(Mounting)
Same as for lumisphere.
<Taking measuroments)
Pointthe reflected-lightfilter accurately
toward the subject.When you wish to
take a measurementof part of the
subject,do so as close to the subject as
possible.
4. Synccord
The synccord is connectedto the
exposuremeter and a flash unit to
measureflash lighting.The 5m long
synccord is fitted with 3 plugs so that it
can simultaneouslybe synchronizedwith
exposuremeter, the flash and the
camera,convenientlydoing away with
the necessityof reconnectingthe cord to
each duringshooting.In addition,the
terminalconnectionon the exposure
meter is fitted with a lockingdevice to
ensurea secureconnectionat all times.
To disconnectthe sync-cord,simply pull
the ring attachmenttoward you to
releasethe lock mechanism.
Camera
www.butkus.usView original page 9Page 10 · Read text
5. Viewfinder(Light acceptance angle10o).Sold separately Use this in the same way as the reflected-lightfilter to measurereflected light.With a light acceptanceangle as narrow as 10o it is possibleto take measurementsof distantsubjects without going up close to them, or to check the part of the subject to be measuredwith the nakedeye.View original page 10
Page 11 · Read text
Prcparingthe Meterfor Operation
1. Insertingthe battery
The meter uses a singleM pen light
battery(1 5V) An alkalimanganesedry
cell battery(LR6)will provide4 hoursof
continuoususageand a manganesedry
cell battery(SUM-3)will provide2 hours
of continuoususage.
(How to insert the battery)
@ Placeyour fingerin the notch on the
batterychambercover,slideit in the
directionof the arrow and lift it off.
@ Placethe batteryin the battery
chambercorrectlyaligningthe O and
O polaritiesas indicatedon the
insideof the chamber.
@ Replacethe cover by insertingthe
notch into the slot of the meter and
gentlypushingit home.
<NOTE>
. Makesure that tne @ and O
polaritieson the batteryare correctly
alignedwith the @ and O symbols
on the insideof the batterychamber.
Makesure that the battery
extremitiesand their corresponding
connectionson the meter are clean
and free from foreignmatter.
Whenyou are not usingthe meter for
a periodof a week or more, remove
the batteryand keep it in the pocket
providedon the carryingcase.This
will oreventdeteriorationof the built-
in circuitarisingfrom batteryleakage.
2. Checking the battery
Checkthe batterybeforeyou use the
meter A weak batterywill not give
correct light readings.The strengthof
the batteryis indicatedby the bar/dot
symbolmarksaccompanyingthe b.c
display.The row of bar/dotdecreasesas I1 . ll t. 2l . 2l 3 4. l . I
the strengthof the batterydeteriorates.
Bar/dotsymbolmarks
www.butkus.usView original page 11Page 12 · Read text
(Checking the strength of the ASA battery> FLASH.C 5 9
@ Switchthe meter ON by pressingthe On/Offkey. E
@ Whilethe On/Offkey is depressed, the displaywill show the full load E -" l?s
batteryvoltageand the b.c symbols. I 1.4 2 28 4 56 8 il 16 2232456490
Whenthe On/Offkey is released,the
displaywill indicatethe mode
currentlyselected.
<NOTD
o lf the row of bar/dotsis flashing,or if
the b.c symbol is not accompaniedby a row of bar/dots,this indicatesthat ,D,f
the battery is too weak to give
correct light readingsand must be u l l 4 2 2 8 4 5 6 I i l 1 6 2 2 3 2 4 5 6 4 9 0
replacedby a new battery.
o In additionto indicatinga weak
batterywhen the On/Offkey is
depressed,the b.c and dot symbol
markswill also be displayedwhen
lhere is a malfunctionof the battery
In this case, removethe battery,wait
for 10 secondsand then replaceit. lf
this does not correct the malfunction
and the display,use a new battery.
3. Opening the capsule
The 8 operatingkeysare distributedin 2
groupsof 4 each, 1 set on the outer
case of the meterand 1 set on the face
of the capsule.To exposethe keyson
the face of the capsule,take the case of
the meter in one handand slidethe
capsuleout with the other.
. To avoidoperatingmistakes,it is
recommendedthat you keep the
capsulecoveredwhen these keys are
not in use.View original page 12Page 14 · Read text
5. Selecting measuring mode (2)
Pressthe F/EVkey in the Ambientlighl
measurementmode to selectF/stopor
EV.
A s A S j
E i?s c
I r . 4 2 2 8 4 5 6 8 i l 16 22 32 45 64 90
Pressthe F/EVkey in the Flashlightmeasurementmode to selectF/stopor AV
(ApertureValue)(F/stop3 No symbolmark (AV.))
(F symbolmark) (No symbolmark)
ASA t' FLASH.C 5
" E -"i?s
I 14 2 28 4 56 I rr 162232456490
. The correlationbetweenthe F valueand AV is shownin the followingscale:
F No. 0 4 2 . O 2 . 8 4 . 0 5 . 6 8 . 0 t 6 22 32
A V 0 2 3 4 5 6 8 9 r 0
F No. 45 64 90
Fraction index j'!t: 1/10AV displaY
A V t2 t 3
<NOTE>
. The selectionof F <ts EV or . An EV readingcannotbe takenwhen
F € AV can be made beforeor usingthe F/stoppriorityin the
altertakinga reading. Ambientlightmeasurementmode
1 4View original page 14Page 16 · Read text
7. Setting shutter speed
Pressthe A (Up)key or the V (Down)
key to adjustthe setting(shutterspeed)
you wish to measure.
The displaysin the two diagramsat
rightshow the time settingchanged
lrom 11125to 1/250by pressingthe
A key once.The time setting
advancesin unitsof 1EV. ASA The time settingscale is as follows: FLASH.C 5 Y
Flashlightmeasurement: 'l 'll500 En E "v sec.
Ambientlightmeasurement: 30 min. .., 1/9000sec. u l?s
lf eitherthe A key or the Y key is 1 1! 2 28 4 s.6 8 il 16 2232456/.90
depressedfor 1 or more seconds,the
displaywill changecontinuouslyat the rate of once per 1/3 sec. + ASA FLASH.C 5 J
E nu E?5s8. Setting the beeper
Pressthe Gl key to selectthe beeper I t! 2 28 4 5.6 I ll 16 2232456490
Whenthe beeoeris selectedthe
symbolwill be displayed.
Pressthe @ key againto cancel.
o The beeoercan be set to soundin all
modes.
. Whenset, the bell will soundat the
followingtimes:
@ Whenany operatingkey is
deoressed.
@ Whenthe Exposurebuttonis
depressed. AsA @ When exposedlight in the FLASH Gl FLAsH.c 5 {
(Wireless (cordless) measurement En E mode)orthe FLASH 6
(cumulativemeasuringmode.) @ Whenthereis a changein the u i?s
brightnessof ambientlightof 1EV
or more. I v 2 28 4 56 I il 16223245U90
1 6View original page 16Page 19 · Read text
<NOTD
. lt is not possibleto calculateshutter
speedafter takinga reading.
o Thgfinal ASA,tlnp and rnod€
settingsare metnorizedwhenthe
meteris srrtitchedOFFand will be
recalledwhenit is sntitchedON
agnin.
Whenmakingthe time settingmake
surethat it is appropriateto the
capabilitiesof the camerayou are
using.
Certainflash unitscannotbe used
with the sJnccord suppliedwith this
exposurerneter.lf you are usingone
of theseflash units,take wireless
(cordless)measurerr€ntsinstead.
lf you are usinga largeflashunit
(extendedtimeflashunit)in
conjunctionwith a camerawith a
focalplaneshutter,theremaybe
occaslonswhenyou find yot are
experiencinginsutficientillumination.
In suchqasies,checkthe actual
sTnchronizationtimesettingfor the X
contacton your carnera.
Theremaybe timeswhenyourflash
will fire when1rcuconnectthe sync-
cord to the sync-terminal.Thisis
quitenormaland does not indicatea
malfunctionof the equipment.
www.butkus.usView original page 19Page 20 · Read text
Wireless(Codless)MeasurementUsing
an ElectronicFlashUnit
ln case the photographing subiect is
too tar lo use sync-cord, or in case
the sync-cord disturbs photographing,
flash light can also be measured
without connecting sync-cord. (When
measuring under unusual lighting
conditions, refer to the notes on page
24.)
(Taking measurements)
@ Switchthe meter ON.
@ Pressthe MODEkey and select ASA FLASH 'CO Fl-ASH(Wireless(cordless)
measurementmode.) En E
@ Depressthe ASA/MlNkey and keep it
depressedwhilepressingthe A key U E{} or the Y key to set ASA sensitivity
for the film you are using. 1 v 2 2E 4 5,68 il 16 2232456490
@ Pressthe A key or the Y key to set
the shutterspeed(t n 1/500sec.)
@ The readingwill be displayed
automaticallywhen you fire the flash.
To repeata measurement,pressthe
Exposurebuttonand resetthe
F/numberto "0".
o F/stogmeasurementsrangeis F1.0
.v gQ i"":' (90.9)in 1/10stop
increments.
o Measurementsare indicatedin a dual ASA FLASH 'BO displayby the F-stopin digitsand
bar/dotsymbolmarks.The bar/dot t symbolmarks representlhe following: n
. t IJ B.Br*.IE6 3 / 1 0 * 1 t 2 * 7 t 1 0 B, / 1 0 * 0 * 2 t 1 0
. Whenthe measuringrangeis Ir t. 1! 2. l 2. l 8 4. 5l . 6l . 8l fit re; 45 Ar 90
exceeded,the digitalF-stopwill be Bar/dotsymbolmarks replacedby the E (Error)mark
togetherwith the marks ; or 6 ASA indicatingunderor over exposure. FLASH 'OII
. The exoosuremeter can also be used E . - I with a tripod,usingthe tripodsocket
provided. ItE0
u l l t 2 2 3 1 5 6 I i l 1 6 2 2 3 2 4 5 6 4 9 0View original page 20Page 21 · Read text
(Changing ASA sensitivityfor post- ASA FLASH ICT]measurementcalculation)
o The displaysin-thetwo diagramsat rightshow hciw.theF/stopvaluewill E
alter after a readinghas been taken by changingfrom ASA1O0to 45464 E.frr','nEE
l . l . l o l r l o l o l r
r 1 4 2 2 3 4 5 6 8 +lr 16 22 32 45 64 90
A s A 5 l FLASH
El -- tr
5.bi"".EO
i'ii! ,tt'i ttu'3tt t6 22 32 45 64 90
<Switching between F 3 AV> AsAS(' . Pressthe F/EVkey to switchbetween FLASH
the F/number(F markdisplay)and E the AV number(no symbolmark E
displayed.)Thiscan be doneeither beforeor aftertakingreadings. lir. l7s
l o l o l r l o l o l o l o l o l o
<NOTE> l 1.4 2 28 4 5.6 I il 16 2232156490
o lt is not possibleto calculateshutter speedaftertakinga reading 0
. The finalASA,time and mode ASA FLASH 5 J settingsare memorizedwhenthe
meteris switchedOFF and will be
recalledwhenthe meteris switched
ON again Br'-" l?s Whenmakingthe time settingmake
surethat it is approprtateto the | 14 2 28 4 56 8 il 16 223245 64 90
capabilitiesof the camerayou are
usrng
Occasionallyit is not possibleto lf you are usinga large-scaleflash
obtainan accuratereadingin the unit(extendedtime flashunit)in
wireless(cordless)modefor daylight conjunctionwith a camerawith a
synchronizationbecauseof the focal-planeshutter,there may be
brightnessof the surroundingsIn occasionswhen you find there is
such cases,it is recommendedthat insufficientillumination.In such
you takeyour readingsin the wired cases,checkthe actual
modeusingthe sync-cord. synchronizationtime settingfor the X
contacton your camera.
21
www.butkus.usView original page 21Page 24 · Read text
<NOTD . lf you are operatingunder a rapid
. lt is not possibleto calculatesnuiter type of fluorescentlightor under
speed after taking a reading. unusuallightingconditions,this may
r Whenlightof 1/10EV (or less)ofthe resultin malfunctioningof the meter.
cumulativevaluelhus far is added,the In such a case,followthe procedures
displayedmeasurementwill remain set out below:
unchanged,even thoughthe flash @ Switchthe meterto the FLASH.C
may be countedon the cumulative mode and take measurements
flash numberdisplay. with the sync-cordattached.
r The final ASA,time and mode @ lf you are unableto use the sync'.
settingsare memorizedwhen the cord or when measuringin the
meter is switchedOFF and will be FLASH 6 (cumulative
recalledwhen the meter is switched measurement)mode, removethe
ON again. influenceof unusuallightingbY
o When makingthe time settingmake switchingoff such lightsand then
sure that it is appropriateto the take your measurements.
capabilitiesof the camerayou are
uslng.
o lf a flash that can be sensedby the
meter is fired in the vicinityor you
fire your flashby mistake,in either
case the value of these exPosures
will be includedin the cumulative
measurement.
o lf you are usinga largesize flash unit
(extendedtime flash unit)in
conjunctionwith a camerawith a
focal-planeshutter,there may be
occasionswhen you findthere is
insufficientillumination.In such
cases,check the actual
synchronizationtime settingfor the X
contacton your camera.View original page 24Page 25 · Read text
MeasurcmentUsingFlash Bulbs
The procedures for taking
measurementsusing an M-classor an
FP-classf lash bulb are the sa/zneas
for taking wired measurements with
the sync-cord and an electronic flash
unit.
(Taking measurements)
@ Switchthe meterON.
@ Pressthe MODEkey and select ASA FLASH.C (Wiredmode.) FLASH.C 'BO
@ Depressthe ASAJMINkey and keep it depressedwhile pressingthe key E
or the Y key to set ASA sensitivity for the film you are using. nU E10
@ Pressthe A key or the Y key to set
the shutterspeed.A settingof 1 . l lt 2 28 4 56 8 il 16 2232456tr90
1/500sec. is oossiblebut the
recommendedsettingis 1/30sec or
IESS.
@ Connectthe sync-cordto the sync-
terminalon the exposuremeter and
to the flashunit.
@ Pressthe Exposurebuttonto fire the
flash.The displaywill registerthe
F/stopvalue.Pressthe Exposure
buttonagainfor repeated
measurements.
F/stop measurements range is F1.0 ASA 'tl10 rv FLASH.C IEO BQ j"'i (90.9)in stop
increments tr Measurementsare indicatedin a dual
displayby the F/numberin digitsand bar/dotsymbolmarks.The bar/dot f'!'_ 1{l
symbolmarks representthe following:
. l ?'#ilr | rc22324s64eo
3/10* 112* 7110,B/10- 0 - 2l1O Bar/dotslmbol marks
www.butkus.usView original page 25Page 27 · Read text
<NOTD
. These measurementscannot be
taken in the wireless(cordless)or
cumulative modes.
o lt is not possibleto calculate shutter
speed after taking a reading.
o The finalASA, time and mode
settings are memorizedwhen the
meter is switchedOFF and will be
recalled when it is switched ON
agarn.
o When makingthe time setting make
sure it is appropriateto the
capabilitiesof the camera you are
using. lt is recommendedthat you set
the sync time to 1/30sec. or less.
o When usinga flash bulb set the sync
connectionon the camera to the X
contact.
o There may be times when your flash
bulb will fire when you connect the
synccord to the sync-terminal.lt is
therefore recommendedthat you fix
the flash bulb into the flash gun after
connecting the synccord to the
exposure meter.
www.butkus.usView original page 27Page 28 · Read text
MeasuringAmbientLight
Measuring'ambient light, whether it is 5rldaylight or standard electric light, is a -
tairly simple matter using either the T E
(Time) priority or the Flstop priority' n
(Taking measurements> I I U-
@ Switchthe meterON. 4 s6 45 64 90
@ Pressthe MODEkeYand switchto
the Ambientlightmode (indicatedby T Cfime)prioritY
eitherthe F mark or the no sYmbol
mark displayed.) AsA6r' F@ Pressthe T/F key to switchto either
T (no symbolmark disPlaYed)or F (F E markdisplay.) E
@ Depressthe ASAJMINkey and keep it J. IJ
depressedwhile Pressingthe A keY -
I o.l :i: or the Y keYto set ASA sensitivitY ;;:i 4 5 0 32 45 64 90 2E r r t 2 for the film you are using.
@ Pressthe A keYor the V keYto set F/stoppriority
the shutterspeedO priority)orthe
F/stopvalue(F PrioritY.)
@ Pressthe ExPosurebuttonand
measurethe actualbrightnessat that
moment.
Whenusingthe T PrioritY,the
F/numberwill be shownin the
display,and when usingthe F priority,
the time will be shownin the display
. The measurementsin the T priority
The F/stopmeasurementsrangels are indicatedby bar/dotsYmbol
Fl.0 ., 90 -*'''i (90.9)in 1/10stop marks.
incrementswhenthe T priorityis in The F/numberis also disPlaYedin
use. digits.The bar/dotsYmbolmarks
o The T rangeis 30 min. n' 1/8000sec' representthe following:
and is shownin a consecutive I
progressionwhen the F priorityis in 3/10* 112* 7110,8/10- 0 * 2110
use.
. Whenthe Exposurebuttonis kePt
depressedin the Ambientlightmode,
the displaywill givea continuous
readingof the changesin brightnessView original page 28Page 30 · Read text
<F priority post-measurement AsA rt 5calculation)
o Calculationcan be made afier
measurementshave been taken by
changingthe sensitivity(ASAnumber) of the film. nEil
o Similarly,calculationscan be made lI . l t. tl . l2. l 2. l8 4 5 6 I l l 1 6 2 2 3 2 4 5 6 4 9 0
after measurementshave been taken
by changingthe set F value. I
<NOTE> ASAt'BO. lhe finalASA,time and mode F
settingsare memortzedwhen the
meter is switchedOFF and will be E . - - E
recalledwhen it is switchedON g agatn. I.hi*"- ? 5
. With F priorityit is not possibleto
switchbetweenFe EV. i'io'! ir'?'.1 8 r 1622324s64so
o Whenemployingthe F priority,watch Changingfrom A5A64to ASA400
the changesin the fractionindex
display.Whenthe fractionindexis Iv
displayed,set your camerato an
F/numberwhich is the set F/number
+ the fractionindex.
l o l r l o l o l o l o l r l o l o !
I t4 2 28 4 56 8 il 16 2232456490
Changingfrom a stop value
of F5.6to F22View original page 30Page 31 · Read text
MeasurementUsinga MovieCamera
The procedures tor taking
measurements when using a movie
camera are the same as for taking
Ambient light measurements. Set the
shutter speed according to the tilming
speed like 8, 16, or 32, etc.
frameslsec. of the camera, converting
from frameslsec. to the shutter speed.
. There is no shutter speed settingto
<Taking measurements) conform to the shutter speed of 12,
@ Switch the meter ON. 18 and 24 trameslsec.Make the
@ Pressthe MODEkey and select the necessaryadjustmentsto the ASA
Ambientlight measurementmode. settingbased on the following
@ Pressthe T/F key to select T Cl-ime.) formula:
@ Depressthe ASA/MINkey and keep it * -113 compensation:
depressedwhile pressingthe key A settingone value lower
or the V key to set ASA sensitivity than the actual ASA
for the film you are using. sensitivityof the film being
@ Pressthe A key or the V key to set used (ASA40* ASA32)
the shutter speed appropriateto the * + 1/3 compensation:
filmingspeed(8, 16, 32, etc. A settingone valuehigher
frames/sec.)you are using. than the actual ASA
@ Pressthe Exposurebutton. sensitivityof the film being
used (ASA40* ASA50)
Table of Settings Used with CineCameras
Framesper second 8 12 16 1 8 24 32 64 128
Shutterspeed 1/15 1/30 1/60 1t125 1t250
Degreeof compensation 0 +1/3 0 -1t3 +1/3 0 0 0
o lf the angleof the shutterapertureis
other than 180" make the following
compensationsto the measurements:
* 160oapertureangle:
- 1/5 EV comoensation
* 220" apertureangle:
+ 1/3 EV compensation
www.butkus.usView original page 31Page 32 · Read text
MeasuringContrastRatio
You can measure the highlight (main
light source) and shadow (fill-in light Main lightsource
source)from the subiect position to
control the illumination contrast
(contrast ratio.)
(Taking measurements using an
electronic flash unit)
O To mount lumidisc,match eitherof
the white dots on the lumisphere
frame to the white dot on the light
sensorthen gentlyturn clockwiseto
secure. Fill-inlightsource
@ Switchthe meter ON.
@ Pressthe MODEkey and selectyour
desired FLASHmode.
@ Pressthe F/EVkey and selectAV (no
symbolmark displayed.)
@ Depressthe ASA,/MINkey and keep it
depressedwhilepressingthe A key
or the V key to set ASA sensitivity
for the film you are using.
@ Pressthe A key or the V key to set
the shutterspeed.
@ Holdingthe exposuremeter at the
subjectposition,correctlypointthe ASA centerof the lumidisctowardthe FLASH.C 5 9
centerof the main lightsource,and
measurethe light. -E
@ Use the same proceduresto measure fill-inlightexposure.Pointthe center ,rf"- i? S
of the lumidiscaccuratelytowardthe
centerof the fill-inlightsourceto r l 4 2 2 8 4 5 6 8 l l 1 6 2 2 3 2 4 5 6 4 9 0
ensurethat it is not affectedby the Exposurereadingfor main lightsource mainlightsource.
@ The displaysin the two diagramsat ASA T' rightshow how a differenceof 2 FLASH.C 5
betweenthe readingsfor the main
and fill-inlightsourcesgivesa con-
trast ratioof 4:1 -E5r"- l?s
I t4 2 2 8 4 5 6 8 ll 16 2232456490
Exposurereadingfor fill-inlightsourceView original page 32From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.