Konica Autoreflex A Manual
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CONTENTS Name of Each Part ..................................................................... 4 Major Specifications for KONICA AUTOREFLEX A... 9 Loading of Mercury Battery Cells ............................................... 10 Handling of Mercury Battery Cells .............................................. 11 Film Loading ............................................................................... 1 2 Shutter and Aperture .................................................................. 16 TTL Metering and Fully Automatic Control ................................ 18 Name of Meter in Viewfinder ..................................................... 21 Watching Meter in Viewfinder ..................................................... 22 Electric-Eye Photography ............................................................ 24 Meters Coupling Range .............................................................. 26 Important Points for Light Measurement at Full Lens Opening ....................................................... 28 Training of Camera ...................................................................... 30 Focusing ....................................................................................... 32 Depth of Field .............................................................................. 34 Infrared Film Compensation Mark .............................................. 36 Depth of Field Table..................................................................... 38 Film Rewind................................................................................. 40 B (Bulb) Exposure ........................................................................ 42 Synchroflash Photography .......................................................... 43 Exposure for Synchroflash Pictures ............................................ 45 Lens Interchange ......................................................................... 46 Stopped-Down Aperture Measurement ...................................... 48 Important Points of Stopped-Down Aperture Measurement ............................................................. 50 Hexanon Interchangeable Lenses .............................................. 52 Accessories .................................................................................. 56
MAJOR SPECIFICATIONS FOR KONICA AUTOREFLEX A Type : 35 mm SLR equipped with focal plane shutter and built-in CdS meter for automatic exposure determination. Picture Size : 24 X 36 mm. Film : 35mm film in cartridge, 20 or 36 exposure. Standard Lens: HEXANON 57mm f/1.2 (6-group and 7-element), 57mm f/1.4 (5-group and 6-element) or 52 mm f/ 1.8 (5-group and 6-element). Minimum taking distance 1.5 ft. (0.45m.) Mount: KONICA Mount II (bayonet), 47mm. in diameter and 40.5 mm. in flange back. Aperture Device : Fully automatic aperture (automatic full lens opening). Shutter:CopalSquareS,B,1-1/500sec.calibratedinequally-graded1:2progression,MandX synchro,electroniclightcoupledto1/125sec.withXsynchroandtoallshutterspeedswith M synchro. Viewfinder: Eye-level viewfinder using pentaprism, lens focused with Micro Dia Prism of dispersion alignment type at viewfinder center. Meter visible within field of view. Mirror: Mirror edge vertically flips. Full quick return type. Exposure Adjustment:TTLsystemusingsuper-highsensitivecompoundCdSmeter(lightmeasuredmostlyatcenterof pictureimage).AutomaticaperturelensElectric-eye:Fullelectric-eyesystemcoupledtofilm speed,shutterspeedandinterchangeablelensesatfullopening.Manualaperture:direct readingoff-numbercoupledtofilmspeed,shutterspeed. Manualpre-setaperture lens - zeromethodaftercameraissettofilmandshutterspeeds.Zero-methodsysteminwhichcamera is coupled to pre-set aperture, film and shutter speeds. Two1.3Vmercurybatterycellsused as electric source. EE Coupling Range: EV4.5 to EV17 with ASA 100. Coupled to ASA 25 to 1,600 (DIN 15 to 33). Film Wind : Film wound by cocking wind lever in single action. Shutter charged and mirrorand automatic aperture set simultaneously. Film Counter : Automatic Film Counter which returns to "Start" mark simultaneously with opening of back cover and indicates number of pictures exposed. Film Rewind: Film rewind button depressed at first for subsequent film rewind with crank. Button automatically returns to original position. Dimensions and Weight: With f 1.8 lens -- 148 mm (width) 95mm (height) X 89 mm (thickness), 930grams. With f/1.4 lens - 148mm (width) 95mm (height) X 90mm (thickness), 1,010 grams. With f/1.2lens - - 148mm (
width) X 95mm (height) 96mm (thickness), 1,200grams. This manual was created by www.butkus.org/chinon and should only be found at my site. LOADING OF MERCURY BATTERY CELLS ThecompoundCdSmeteroftheKONICAAUTOREFLEXAtakestwo1.3Vmercurybatterycellsasitselectricsource.Wipethe mercury battery cells, accessories for camera, with a piece of dry and clean cloth and put them into the mercury battery chamber. 1 Turn the cover of the Mercury Battery Chamber 27 counterclockwise with a coin and detach it from the chamber. 2Insertthetwocellsintothemercurybatterychamber,the"+"sideup,accordingtothefigureprintedonthesealinsidethe chamber. After the cells have been put into position, put the cover on the chamber and screw it tightly. Handling of Mercury Battery Cells JAmercurybatteryisfullyserviceableformorethanoneyearifusednormally.Thebatteryvoltagedropsabruptlywhenitbecomes weak,theCdSmeterwillstopnormaloperation.Whenthemeterpointerdoesnotmoveeveninbrightlight,replacethebattery with a new one. For the mercury battery, it is recommendable to use 1.3V battery, Mallory PX-675 or Eveready EPX-675. Since there are various batteries which resemble the above, but are of a different voltage than that required, caution should be observed when replacing so as not to damage the camera. When not using the camera for a long period, store it in a place with little moisture after taking out the mercury battery. This manual was created by www.butkus.org/chinon and should only be found at my site. FILM LOADING 0 The KONICA AUTOREFLEX A takes 35 mm roll film which comes in a cartridge. Forfilmloading,avoidthedirectsunlightanddoitintheshade.Ifthereisnoshade,onewaywouldbetousethe shadow of your body. 1 Pull the Back Cover Lock 26 and open the Back Cover 32 of the camera.
2Directtowardtheundersideofthecamerathatsideofthecartridgethroughwhichitsspindlesticksoutandputthecartridge into the Cartridge Chamber 2 . 131 InsertthefilmtipintotheFilmTake-upSlit33 , oftheFilmTake-upSpool 34). Anyslitisusable.Chooseanyslitintowhichthefilm tip can be inserted with ease. 141 Turn the Film C o cking Lever (17) and take up the film on the spool. Ascertain that the teeth of the Sprocket 15) r in gear with film perforations, before the back cover is to be closed. Depress the back cover with o finger tip, and it will be closed with ease. This manual was created by www.butkus.org/chinon and should only be found at my site.
F51 Afterthebackcoverisclosed,flipuptheFilmRewindCrank13andturnitinthedirectionindicatedbyanarrowmarkonitto reduce the slack of the film. n WindthefilmanddepresstheShutterButton(1(.Repeatthisactionuntilthefigure "1" appearsintheFilmCounterWindow 18. TurntheFilmCockingLeveruntilitdoesnotmovefurtherandthefilmwillbetransportedbyoneframeandtheshutter charged at the s time. The mirror and the automatic aperture will also be set. Eachtimewhenthecockinglevermanipulated,thefilmcounteradvancesonereading,indicatingthenumberofpicturesthat havebeentaken.Whenthebackcoverisopenedaftertheexposureofarolloffilm,thefilmcounterautomaticallyreturnsto the " S" (Start) position. To Check Film Advance: When the film is being taken up in a correct manner, the Film Rewind Knob 14) turns counterclockwise. If it does not turn counterclockwise, it means that the film is not being properly wound. This manual was created by www.butkus.org/chinon and should only be found at my site. SHUTTER AND APERTURE A shutter is designed to control the amount of light reaching the film surface in terms of time and photographically to fix an image of a subject on it. The shutter speed scale has calibrations of B and 1 to 500. The readings of 1, 2, 4, 8 .... 500
indicate the shutter speeds of 1, 1/2, 1/4, 1/8 .... and 1/500 sec., respectively. • The shutter speed reading of "B" is used when there is the need for the exposure of over one second. (See the explanation on "B Exposure" on Page 42.) • The colored figure of "125" is the maximum shutter speed for synchronization with electronic lights. • Dot not turn the shutter speed dial while the shutter button is depressed. Thelensapertureisdesignedtocontroltheamountoflightreachingthefilmsurfaceintermsofareaandthedepthoffield(See Page34),thescopeinwhichthelensmaybefocusedonasubject.Theapertureringofeachlenshasascaleoff-numbers, rangingfromareadingforitsfullopeningtoareadingatthetimethelensisfullystoppeddown.Theapertureringclicksinto positionateachlensaperturereading.Astheringmovesfromf/2tof/2.8,theamountoflightreachingthefilmsurface proportionallyincreases.Theirrelationsareindicatedintheabovefigure.Forexample,theamountoflightatf/4ishalfthevolume of f/2.8, and the amount of light at f5.6 is half the volume of f4. The aperture of a lens bearing the mark of "Electric Eye" is fully automatic. Only during the split moment when the shutter is released, the lens is stopped down to a determined f-number and then automati cally returns to the full opening at once. TTL METERING AND FULLY AUTOMATIC CONTROL TheKONICAAUTOREFLEXAincorporatesthelatestexposuresysteminwhichthecompoundCdSmeterwhichmeasuresat thecenterofthetakinglensthelightcomingthroughthetakinglens,andthissystemistiedinwithafullyautomaticElectric-Eye (EE) exposure control, making it possible effectively to secure a correct exposure at an instant. Inthefullyautomaticexposurecontrol,thevaluesofshutterandfilmspeeds,asindicatedinaseparatefigure,aretransferred totheCdSmeterbyacoupler.Thevalueofafullyautomaticaperture(Electric-Eye)lensistransferredfromthef-number transferleveltothecouplerandthenbyadifferentialgeartothemeter.Atthesametime,themarkindicatingthef-numberat the full lens opening of the use lens will be shown in the field of view. ThetwoCdScellssituatedonbothsidesoftheeyepieceanddirectedinwardsmeasurelightonthefocalplane,andthe measuredvalueistransferredfromthecircuithavingacompensatoryresistorandavariableresistortothemeter,makingit possibleforthemetertostartitsoperationandautomaticallytodetermineacorrectexposure.Thedeterminedf-numberwillbe shown by the meter needle visible in the field of view. NOTE:IntheeventthatyouarepossessedofafullyautomaticaperturelensoftheElectricEyetypeforuseontheKONICA AUTOREFLEX, it will be remodeled at any service station of the KONICA camera agent without any trouble.
WATCHING METER IN VIEWFINDER CorrectExposureRange: ThestoppingoftheMeterNeedle#2withintherangeofcorrectexposure(orsomewhereonthef- numberscalefortheusedlens)isanindicationofthefeasibilityoftakingpicturesundertheElectric-Eyesystem.Here,the meter needle shows the aperture to which the taking lens is to be set for a shot. WarningMarksandMarkfortheIndicationofFnumberattheFullOpeningoftheLens: Theredmarkvisibleonthetop ofthef-numberscalevisibleinthefieldofviewisamarkforthewarningofunderexposureforanf/1.2lens.Ifthelensisnotf/ 1.2inbrightness,theMarkfortheIndicationoftheF-NumberattheFullLensOpening(43)willshowthef-numberatthefull openingofthetakinglens.Ifthemeterneedleisalignedwiththismark,pictureswillbeunder-exposed.Thesignalplacedatthe bottomofthef-numberscaleisawarningmarkforover-exposure.IfthemeterneedleisbroughtinlinewiththisOver-exposure WarningMark40,itwillbeimpossibletosecureacorrectexposure. IndexPointforStopped-DownApertureMeasurement: WhenthelensisstoppeddownforthemeasurementoflightthemeterneedlewillbealignedwiththeIndexPoint39,ifa combination of shutter speed and lens aperture which assures correct exposure for the film used in the camera comes out. Manual Aperture Indicator Mark: "M", the Manual Aperture Indicator Mark 44,, indicates the non-alignment of the Electric Eye Mark I~ of the Aperture Ring 12 with the index mark for a fully automatic aperture (Electric-eye) lens. When the camera is not used under the Electric-eye system, the alphabet "M" is visible at all times, indicating that the aperture of the lens may be manually operated. This manual was created by www.butkus.org/chinon and should only be found at my site. LIGHT MEASUREMENT AT FULL LENS OPENING ELECTRIC-EYE PHOTOGRAPHY (Light Measurement at Full Lens Opening) IntheeventthatalensequippedwithafullyautomaticapertureundertheElectric-EyesystemandhavinganElectric-Eyemark, picturesmaybetakenundertheElectric-Eyesystemwhilelightismeasuredatthefullopeningofthelensandtheviewfinderisbrightened as a result of its full opening.
O The ASA and DIN scales visible through the film speed indicator window on the shutter speed dial indicate the degrees to which film is sensitive to light. The film speed of your film is indicated on the box in which it is contained and in its instruction booklet. O Makesurethatthecameraiscorrectlysettothespeedofthefilmloadedinthecamera.Amistakeinthesettingofthefilm speed will not assure correct exposure. The figures in brackets are the readings for intermediate film speeds. 1 Set the film speed (ASA or DIN). LiftandturntheexternalringoftheShutterSpeedDial8,andalignthereadingequivalenttothespeedofthefilmusedinthe camerawiththeindexmarkoftheFilmSpeedIndicatorWindow.Whentheyarealignedwitheachother,theringdropsandis fixed. 2 Determine the shutter speed. TurntheShutterSpeedDial8,selectaShutterSpeedScale16suitableforyoursubjectandbringthereadingwiththeindex mark. It is convenient to set the shutter speed to 1%250 sec. for outdoor shooting and 1 30 sec. for indoor s hooting.