LEICA R4 MOT User manual

Perfect  pictures  without  technical   Brief instructions for perfect pictures
problems- the outstandingfeatureof the   without technicalproblemswith the
LEICA@R 4.                           automaticprograms.
Itsoptimumadaptationto the taskin hand
andto the photographicsituationis based
on its 5 programs,which are combined  Beforetakingphotographs:Detailsonpage
with the well-triedalternativemethodsof
LEITZ largefield integrating and LEITZ    1) Attachthe carryingstrap        6
selectiveexposuremeasurement.          2) Insertand test batteries-
With interchangeablelensesfrom 15 to       test button(13),LED(12)        7
800mmfocallengthanda comprehensive  3) Insertthe lens                9
rangeof accessoriestheLEICAR 4 offersa    4) Set film speed- locking
universalsystemwhich leavesnothingto      button(13),knurledring(15)    1 0
be desired.                              5) Insertfilm                   1 1
These instructionsare not designedto     6) Windthe shutter             1 0
preventyou fromtakingphotographs,but    7) SelectautomaticprogramEl -
to tellyou in a f ewwordshowsimpleit is to      programselector(6)          30
handlethe LEICAR 4.                     8) Stopthe lensdowntil minimum
                                         aperture-
We hopethat photographywith your new      aperturepreselectionring (21)  30
LEICAR 4 willgiveyou muchpleasureand    9) Focus- distancesettingring (23) 36
success.                             10) Pressthe releasebutton
ERNSTLEITZWETZLARGMBH          To enable you to utilize the universal
                                          possibilitiesof the LEICAR 4 to the full,
                                    pleasereadthe detailedinstructions.




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Contents                            Page    uniform groundglass screen with grid division g7
   Brief instructions                                             crosslines
  Briefdescription                                               i      lt:ftL"ti:"""sllt:"with                36
  Attaching the carrying strap                   6    Eyepiece blanking                         39
     f nserting and testing the batteries             7     Uuttipte exposurei                        40
   lnserting the lens                             9     Setf-iimer                                40
  Removing the lens                            g     Depth-of-field lever                        41
  Rapid transport lever.                      10    Depth-of-field scale                          4 1  setting          the               film                                                       t0                                                   Hoioing               speed                       ]                                                               the camera correcfly               42                                                                        -  lnserting           the                film                                          11    Flash                                                        synchronisation                                                                                       49
  Removing the fifm                         14    Automaiic switch-over to "X"                44
  switching on the exposure system           14    InterchangeablelenJes-                     4s  The_alternativeexposure measuring methods                                                          lq    Design ot tne LEICA R lenses               46
   Lllfz  largefield integrating measurement     16     Autoitatic spring-back diaphragm            46  LEITZ selective              measurement               16                                               Lens hoods                                                                                        47                                                               'lT  Exposure            corrections                                                             Filters                                                                                        4g
  Measuring with working aperture            18    The use of filters                         49
  Insufficient light for measurement            18    The use of existing LEICA R lenses
  Long-time range                                   ..                      19    and accessories                          50
  Working diagram of the exposure meter       20    LEICA M lenses on the LEICA R 4            51
  selecting the programs                    22    care of the LEICA R 4                         ,,51
  shutter speed ring                        23   MoToR-WINDER R 4, MOTOR_DR|VER 4      52
  Automatic shutter speed control with LEITZ           Remote-control LEICA R
  LEITZ largefield integrating measurement     24     electronic control unit                      54
  Automatic shutter speed control with             DB LEICA R 4 Databack                    54
  LEITZ selective measurement                26    Cases                                    55
  Automatic aperture control with        I                      Suitability for use in the tropics              55
  LElrz largefield integrating measurement      2g    camera spare parts                        56
  Automatic program with LEITZ largefield             Focusing screens                         56
  integrating measurement                   30     After Sales Service                        56
  Manual setting with LEITZ selective                 Enlargers                                57
  measurement                             32     projectors                                 57
  The viewfinderas a composition and               LEICA Information Service-                   5g
  control centre                            34    LEICA School                             5g
  Focusing with the universal focusing screen   36    "LEICA Fotografie" magazine                59  Interchangeablefocusing screens           gT
  Uniform groundglass screen,                             In these instructions the camera  is called the
  micro-prism screen                        97   LEICA R 4.
                                  3
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Ret.-Nr 24 623-1 11




Brief description
1  Automaticframecounter
2  Controlwindowfor film transport
3  Leverfor rapidshutterwind and film
   transport                                       10 LEDfor self-timer
4  Reledsebuttonwith threadfor cable release                                 i  i  [ocking buttonfor exposurecorrection
5  ShuttersPeedring                                12 LEDfor batterYtest6  Programselector                                             i5  [ocfing buttohfor ISO (ASA/.D|N)settingof the7  Viewingwindowfor the set program                         eiposu-remeter, batterytest knob (C)
8  Accessbryshoe with centre and controlcontact         14  Foldingrewindcrank
9  llluminatingwindowfor shutter-speeddisplay           15 Film-sPeedsettingring

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Ret.-Nr 24 624-1 i 1





                                                 24  Flashcontact
16 Scalefor exposurecorrection                      25  Eyeletfor carryingstrap
17  Electronicself-timer                             26  Viewingwindowfor insertedfilm
18 Bayonetlock                                  27 Eyepieceblank
19  Depth-of-fieldlever                              28  Viewfindereyepiece,correctionlenses
20 Reddot markingfor lenschange                       can be inserteo
21  Aperturepreselectionring                         29 Cap for batterycompartment
22  Depth-of-fieldscale                             30 A 1/4 tripodthread
23  Distancesettingring                             31  Rewindreleaseand double-exposurebutton

                                 5

Attachingthe carryingstrap
Attach the carryingstrap to the eyelets
(25).
Remove the  metal hooks from the
carrying strap and hook them into the
eyelets on the camera. Replace the
carrying strap and push the securing
loopsoverthe metalhooks.
A smallpocketfor2 sparebatteriesisfixed
to the carryingstrap.




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lnsertingand testing the batteries       you have not used the camera for a
TheLEICAR 4 requireselectricalpowerfor prolongedperiod.Pressthe batterytest-
exposuremeasurementshutter/aperture  ing button(13),marked"C" on top left of
control.This is suppliedbV 2 L 55v silver  the camera.The LED(12)fittedin frontof
oxidebuttoncells.                      the battery test button lights up in red
To insertthe batteriesunscrewwitha coin  when the batteriesare in workingorder.
and removethe cap (29)on the underside The battery test knob should remain
of the camerabody.Removefilmsof oxide  pressedfor about5 seconds.A noticeable
from the batterieswith a clean cloth and   reductionin the lightintensityof the LED
insertthe batteriesin the cap accordingto   duringindicatesthe imminentexhaustion
the insertionsymbols.Screwthe cap and   of the batteries,whichshouldbe replaced.
batteries into the  baseplate of  the
camera.
Checkthe stateof the batteriesbeforeyou
starttakingphotographs,especiallywhen

lmportant                            Designationand maln uses:
Whenthe MOTOR-WINDERR 4 or MOTOR-
DRIVER 4 is attached,the batteriesare
tested  when  the  exposure  system   is    Manufacturer PhotographicDeafaids
simultaneously  switched  on, for instance     Manufacrurer photographicDeafaids  warches
by meansof pressingthe lockingbutton                 equipment
on the programselector(see "Switching                                    r'ennenov        S76E
on the exposuresystem",page 14).        fr,fhlf_OnV MS76H  MS76H  10L14
                             MAXEL    SR44F
                              NATIONAL G13     G13
                                 RAY-O-VAC RS76G   RS76G
                            UCAR     EPX76   S76E    No.357
                              VARTA    V76PX   V76HS   No.541

                                           Tips for battery care and use:
                                        Store batteries in a cool and dry place.
                                Do not use new and used batteries to-
                                           gether.
                                   The batteries cannot be recharged.
                                Do not throw used batteries into the fire.





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Insertingthe lens                   Removingthe lens
Grip the lens by the fixed ring (22).Make  Independentlyof the distanceand aper-
the reddot (20)on the lensmountfacethe   ture setting the LEICA R lenses are
bayonetlock (18) on the camera body.  exchangedas follows:
Insertthe lensin thisposition.Afteraslight  Grip the lens by the fixed ring (22).De-
clockwise turn the lens clicks into   pressthe bayonetlock (18) on thecamera.
position.                           Turnthe lensanticlockwiseand removeit.
                              Changelensesintheshadowof yourbody.

Rapidtransportlever                     Setting the film speed
Therapidtransportlever(3)transportsthe  To set the exposuremeterfor the speedof
film,windsthe shutter,and operatesthe   the film in the camerapressthe locking
filmcounter(1).                        button(13) andat the sametime rotatethe
When the lever is turned out (standby  setting ring (15) until the desired film
position)the thumbcan be movedbehind  speedis displayedin theviewingwindows
it and thereby securely support the   (DlNat the front,ASA at the rear).
camera.                         The adjustmentrange extendsfrom ISO
Whenthe MOTOR-WINDERR 4 or MOTOR-   12/12"(ASA12/12DIN)to ISO 3200/36'
DRIVER 4 is attached,consultinstructions (ASA 3200/36 DIN). ISO is the inter-
for the MOTOR-WINDERor MOTOR-DRIVE nationalscaleunitfor filmspeed.
respectively.



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Insertingthe film
Pullup the rewindcrank(14)to openthe
camera back*. After some spring force
has been overcome the camera back
opens automatically.The film counter
returnsto "S" (start).
Windthe shutterwith the rapidtransport
leverand releaseit.




-: The operationis identicalwith the DatabackDB LEICAR 4
attached.

                                     1 1

Pick up the film cartridgeas illustrated Transportthe filmthroughone framewith
above.The emulsionside pointsto the   the rapidtransportleverso that it will be
viewer.Pushthe end of the film obliquely  tautin the filmguideandthe filmcartridge
fromaboveintooneof the slotsof thetake-  mouthis not proud.
up spool.Ensurethatthe end of the filmis
fullygrippedby at leastone lug and pro-
trudesunderthe nextlug.
Fullypull up the rewindcrankand insert
the film cartridge in the empty film
cartridge chamber. New push in the
rewindcrank.Theedgeof the filmmustbe
parallelto thef ilmguideandthe sprockets
of the transportdrum mustengagein the
perforationholesof the f ilmwhenthe rapid
transportleveris oPerated.
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Closethe cameraby snappingthe camera  The film has been correctly inserted and is
back shut.Releasethe shutter.Transport  transported when a bright field becomes
the film through one frame and again   visible in the control window (2) in front of
releasethe shutter. Transportthe film   the  rapid transport lever;  it advances
once again.The camerais now readyfor   towards the front edge of the window with
operation.Thefilmcounter(1) pointsat 1.   each exposure.
It countsforwardto "36". For the various
lengthsof f ilmthe numbers"20","24", and
"36"are markedin red.





                                 1 3

Rewindingand taking out the film
Whenthefilmhasbeenexposedtothe last
frame the rapid transport lever can no
longer be operated.Before the film is
removedfrom the camera it must be
rewound into its cartridge. Press the
rewindreleasebutton (31) on the under-
side of the camera body, turn out the
rewindcrank and rotate it clockwise(in
the directionof the arrow)untilthe film is
pulledout of the take-upspoolafterslight
resistancehas beenovercome.Openthe
camerabody by pullingup the rewind
crankand take out the film cartridge.
Changefilms in the shadowof your body.                                      Switchingon the exposuresYstem
                                The exposuresystemof the LEICAR 4 is
                                    switchedon with slight pressureof the
                                     release button (4) or pressure of the
                                       lockingbuttonon the programselector(6).
                                The LED displaysin the viev'rfinderlights
                                     up.





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The  alternative exposure measuring   Sensitivity of the exposure meter
methods                         The measuring r?nge with integrating-OSOOOTheLEICAR 4 hasan exposuremeasuring  measurementis 0.25 cdlmz to
system  with  alternative measuring  cdlmz att/1.4.|nexposurevalues(EF):at
methods:                        fSO 100/210from*1 to +1 g, or t/1.4/1'sec
 I   LEIrZ largefieldintegrating             to l/22/1000sec.The measuringrange
   measurement                      with selectivemeasurementis t cOlmzlo
O  LEITZselectivemeasurement       6300 cdlmz at tl1.4. In exposurevalues
These exposuremeasurementmethods   (EF):at ISO 1O0/21ofrom *3 to *19, orarecombinedwiththe operatingmodesof   tl1.4/t/asecto tl22/ 1/rooosec.
automaticshutter speed control, auto-
maticaperturecontrolandmanualsetting
of shutterspeedand aperture,i.e.theyare
combinedinto programs.
The exposureis measuredthrough the
lens. With the LEICAR lenseswith fully
automatic     preset     diaphragm
measurementis carried out at full aper-
ture.Thesymbolof the measuringmethod
employed is displayed in the viewing
window(7) next to the programselectoi
and in the bottomleft-handcornerof the
viewfinderas a program.The exposureis
measuredbyasiliconphotodiodehoused
in the bottompartof the camerawhereit is
protectedagainststraylight.



                                 1 5
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Bet -Nr 29 908-11 1

LEITZlargefield i ntegrating             LEITZselective measurement
measurement                        This method is used whenever great
Most photographicsubjects are com-   brightnessdifferencesoccur in the entire
posedof detailsof variedbrightness.The   subjectand a certain detail is to be ex-
reflection of such ordinary subjects  posedaccurately.
correspondsto thatof a meangreyvalueof  The measuringfield is exactlyoutlinedin
18%,for which every exposuremeter is   the viewfinderby the largecentralcircle.lt
calibrated.                                    is indicatedat the samesizeandclarityfor
As a rule the detailsof variedbrightness   all focallengthsand all focusingscreens.
are equally distributedthroughout the  The programs with selective measure-
entirefield.Herethe programswith large-  ment are called O and @ (see pp. 24
field integratingmeasurementEl, E or   to 33).
E (see pp. 24 to 33) should be chosen.


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and precisely defined measuringfield.
                                 Herea correctionis not required.
                                  Example for a "*" correction
                                    With very brightsubjects,such as snow-
                                    scapes,or the beach,the exposuremeter,
                                  owingto the greaterreflectionof the light,
                                                 will indicatea shutterspeedwhich is too
                                      high and therefore produces under-
                                    exposure. Consequently the  shutter
                                 speedmustbe reduced,for instancefrom                                          'l/125                                                 to 1/60 sec.
                                     Thisis donewiththe "+1" correction.
                                 Exampleof a"-" correction
Exposure correction  (override)           Withverydark subjectswhich reflectlittle
Exposuremeters are calibratedior a mean    light the exposuremeter will indicatea
                                       shutterspeedwhichis too slowandthere-
                                         fore produces overexposure.Conse-
                                      quentlythe shutterspeedmusttherefore
                                 be increased,for instancefrom 1/15 to
                                    1/30sec.throughthe "-1" correction.
applied.                          To set the correctiona lockingbutton(11)
Exposurecorrections are used particular-    is pressedand the scale (16) set to the
ly with  largefield integrating measure-   desiredvaluewith the levernextto it. Half
ments. With selective measurement,as a   exposurevaluesup to +/-2 can besetand
rule, a representative detail of average   clamped.At the end values of the ISO
grey value can be selected from the entire   (ASA/DIN)scale, exposure corrections
subject for a reading through the smaller   can be set only withinlimitations.

                                     1 7

When the camera is switched on, the
overridesymbolV will blink in the bottom
left-hand corner of the viewfinder when a
correction has been set.





Measurementwith working aperture      Valuesbelow the measuringrange
Some accessories such as extreme  The measuringrangeof the cameraused
telephoto lenses, the 3-part ring com-   for correct exposuresis linear.When in
bination,and the UniversalFocusing  very poor light this rangeis not reached,
BellowsR do not incorporatean automatic  these conditionsno longerapplyand an
diaphragm. The exposure must be   accurate exposure can no longer be
measuredwiththe workingaperture. Here  determined.The measuringvalues in-
the photo diode will receivemore or less   dicatedin the viewfinderwill leadto wrong
lightas the lensapertureis adjusted.The   results.A warningsignalis thereforegiven
rest of the operationis identicalwith that   by a constantlightingup of the override
with lenseswith automaticdiaphragm.    symbolp .
                                           In the transitionalrangethe symbolwill
                                         blink.


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Long-timerange                    Becauseas a rule high-speedfilms and
   Theworkingrangeof the exposuremeter   high-speedlensesare used in poor light-
    of the LEICA R 4 depends on the   ing conditionsthis will hardly impose
   measuringsensitivityof the photo diode,   limitations.Evenwhenthe lensis stopped
    thef ilmspeedsetting,andthe speedof the   down 3 stops (with ISO 100/210)the
    lens.Thehighestshutterspeedmeasured  shutter speed will still be determined
    or determinedis 1/1000sec.,the slowest  automatically(althoughit will not be in-
   about8 sec. Minordeviationsin the auto-   dicated).
    matic long-timerange from about 2sec   Needlessto say measurementscan alsoI  and longer(dottedin the diagram)can be   be carriedout at full aperture,the shutter
    ignoredin practice.In the viewfinderthe   speedmeasuredconvertedfor a different
    shutterspeedsfrom 1/1000secto "1sec   aperturevalue,and the exposuremadeat
    or longer"are displayed.In additionan   the "8" setting.
    indicationis givenby the overridesymbol   For slow films the followingvalues are
   when the measuringrange is not being  producedin the sameconditions:
   reached, i.e. if a correct exposure is   ISO50/18o: 2sec
    impossible.The diagram(see next page)  ISO251150: 4sec
    indicatesthe working range of the ex-  ISO 12/12:  8sec   posuremeter.                                   Heretheindicationis "1secandlonger".In
                                           practicethis is of hardlyany significance,
  When the f/1.4 lens is used the slowest  becauseas a rulelongtimeexposuresare
    shutterspeed to be measuredor deter-  made from a tripod.Whetherthe film is
   minedis:                         exposedtor 2,3,4, or 8 secondsis practi-
   ISO800/30o: 1/8sec                    callyimmaterial.
   ISO400/270:1/4sec                The exposure is correct as long as the                                                     :   ISO200/240:1/2sec                    override symbol in the viewfinderof the
      I S O l O O / 2 1 o : 1 s e c                LEICAR 4 does not light up.


                                    1 9
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All the importantdata of the exposure  Exampleof automaticprogram
measuringsystemof the LEICAR 4, such   In the bottom left-hand corner of the
as the measuringsensitivityand measur-  diagram the combinationsof shutter
ing range,are displayedin the working  speedandaperturecan be readwhichare
diagram.                           determinedby automaticprogram[f as a
                                      functionof the lens speed,the available
Exampleof long-tii.                        lightand the filmspeed.
Lens:50mmSUMMILUX@-R"tposure:tl1.4         Lens:50m SUMMICRON@-R I/2
Aperturesetting:tl 1.4                Luminousdensity:2000cd/sq.m.
Filmspeed:ISO 4OO/27o                (brightsunlight)
The lowestluminousdensity(for instance  Filmspeed:ISO 25/15"
in candlelight)measuredis O.Scd/sq.m. Correspondingto the exposurevalue12a
Thiscorrespondsto the exposurevalue4   combinationof f/5.6and 1/125secshutter
and produces a shutter speed (T) of   speedis produced.
1/8secat f/8 of 4sec,andat tl16 of 1Ssec.

                                 21
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Choiceof programs                 The followingprogramscan be chosen:
The programsare set by pressureof the      tltr-  automatic shutter speed control withlockingbuttonandsimultaneousslidingof       LE'TZlargefieldintegrating
the programselector(6).As the locking     measurement
button is being pressed the camera is   6  automaticshutterspeedcontrolwithswitched on. The chosen program is      LEITZselective measureme nt
displayedin the bottomleft-handcornerof                                                           tr  automaticaPerturecontrol withthe vievufinderwindow.In addition,the      LEITZlargefield i ntegrating
programsettingcan be readat anytime in      measurementthe viewingwindow(7) nextto the shutter
speedring.                      E  automaticprogram with LEITZ                                              largefieldi ntegrating measurementThe programselectormustengagein the
chosenposition.lt can be resetonly after @  manualsetting of slylt5tr speedand
the lockingbuttonhas beenpressed.          lens aperturewith LEITZselective
                                  measurement
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