Cosina CT-1 User manual

ENGLISH
WelcometotheexcitingworldofCOSINA.Yournewcameraisoneofa familyofprofessional
qualitycamerasdesignedwiththeseriousphotographerinmind.AndthenameCOSINAisyour
assuranceofsuperblycraftedopticsandoutstandingmechanicalperformanceandreliability.
DEUTSCH
WirbegrüßenSieinderaufregendenWeltderCOSINA.IhreneueKameragehörtzurFamilieder
professionellenQualitätskameras,dieunterBerücksichtigungderAnsprücheernsthafter
Fotografenentwickeltwurde.DerMarkennameCOSINAistIhreGewährfürüberragende
Optik,hervorragendeTechnikundZuverlässigkeit.
FRANCAIS
BienvenuedanslemondepassionnantdeCOSINA.Votrenouvelappareilphotographiqueestun
modeledelafamiliedesappareilsdequaliteprofessionelle,concupourlephotographeaverti.
EtlenomdeCOSINAestpourvousI'assuranced'uneoptiquesuperbementtravaillee,d'une
performancemecaniqueremarquable,etd'unerobustesseinsurpassable.
ITALIANO
Benvenutinelmondoeccitantedella COSINA.LaVostranuovamacchinafotograficafapartedi
unafamigliadimacchinediqualitaprofessionalestudiatetenendopresenteleesigenzedelpiu
serio fotografo.EdilnomeCOSINAe I'assicurazionediun'otticasuperbamentecostruita,e di
prestazionimeccanicheeccezionali.
ESPANOL
BienvenidoalmundoemocionantedelaSunuevacamarapertenecea unafamiliadecamarasde
calidadprofesionalquehansidodisenadaspensandoenelfotografoserio.
YelnombreCOSINAessugarantiadeopticaesplendidamentefabricaday defuncionamiento
mecanicodestacadoy deprecision.
1

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ESSENTIALSPECIFICATIONS
Type:35mmTTL(Through-The-Lens)SLR(Single-Lens-Reflex)camerawithelectronically
controlledautomaticexposureandfocalplaneshutter.
Film:
PictureSize:35mm,J13524X36mm
StandardLenses:K mount
AngleofView:46°
Shutter:Metalfocalplaneshutter1 /1000to1 (seconds)andB.
Self-Timer:Approx.10secondsbuiltin,mechanicaloperation
FieldofView:93°verticaland93°horizontalcoverageoftheactualpicturearea.
Magnification:1 : 0.86(witha standard50mmlens.)
Focusing:Microprismtype
LightMeteringSystem:Open-apertureTTLmeteringsystem,zeromethodsystembymatch
needle,centerweightedaveragemeasurementswithCdS
CoupledRange:EV3—18(ASA1 00)
MinimumObjectTakingDistanceScale:0.5m
ASAofFilm:ASA25to1 600
SynchronizationContact:X contact
AccessoryShoe:HotShoe
FilmAdvanceLever:Singleleverstrokewith1 35°throwand30°stand-off
FrameCounter:Additivetypewithautomaticalresets
FilmRewinding:Rewindcranktype
Mirror:Quick-returnmirror
BackCoverOpening:Hingedbypullingtherewindknobup
PowerSource:OneH-C1.35V
SizeandWeight:1 33X85X48mm,450g(onlybody)
(Subjecttochangewithoutnotice.)
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1NAMEOFPARTS( 1 )
1.ShutterSpeedDial
2.ShutterButton
3.FilmAdvanceLever
4.FrameCounter
5.StrapHook
6.Selt-TimerLever
7.LensDismounting
Button
8.FingerButton
9.AccessoryShoe
10.RewindCrank
(Functioningalsoasbackcoveropeningknob
11.RewindKnob
12.ASAFilmSpeedScale
13.FilmASASettingDial
14.ApertureRing
15.Depth-of-FieldScale
16.Synchronization
Terminal
17.DistanceScale
18.FocusingRing
Fig.1
3

NAMEOFPARTS( 2 )
19.EyepieceofViewfinder
20.RewindShaft
21.FilmChamber
22.BatteryCover-
23.TripodSocket-
24.FilmRail
25.Sprocket
26.BackCover
27.FilmPressurePlate
28.MemoHolder
29.FilmRewindButton
Fig.2
—30.Spool
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2LoadingtheBattery
AnH-C1.35Vbatteryisemployedforthiscamera.
1.Thebatterychambercovercanbeopenedby
turningitcounterclockwisewitha coin-likearticle.
2.Loadonesilveroxidebatterycorrectlyaccording
totheindicationofthepolaritiesinthebatterychamber.
(Ifthebatteryisloadedincorrectlywiththereverse
polarities,themeterneedlewillnotfluctuate.)
3.Turntightlythebatterychambercoverclockwise.
Fig.4
Becarefulnottocontaminatethesurfaceofthebatterywithsweatoroilwhenloadingthe
battery.Ifcontaminatedbatteryisloaded,itcausesanimpropercontact.Whenthebattery
iscontaminated,wipeoffthedirtswithdrycloth.
Unloadthebatterywhenthecameraisnotusedfora longperiod.
Thebatteryshouldlastforapproximatelyoneyearundernormaluse.Whenthecamera
hasbeenusedoveroneyear,replacetheoldbatterywithnewone.
Fig.3
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3ControlSwtich
1.Inthestatethatthefilmisloadedintothecamera,
lightlypullthefilmadvanceleverfromitsstocked
position.Then,theexposuremeterofthecamera
willoperate.
2.Whenthefilmadvanceleverisreturnedtoits
stockedposition,theexposuremeterwillbeturned
OFF.Eveniftheshutterbuttonisdepressedinthis
state,theshutterisnotreleased.
Fig.5
Whennotusingthecamera,returnthefilmadvancelevertoitsstockedposition.(Ifthe
cameraislefttostandforinONstate,thebatterywillconsumeearlier.)
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4Loadingthefilm
TheCOSINACT-1usescolororblackandwhitefilmin
standard35mm(J13524mmx 36mm)film.
1.Pulluptherewindknob,andpullitupstronger.
Thenthebackcoverwillopen.
2.Putthefilmintothefilmchamberas
indicatedinthephotograph,andpressdownthe
rewindshafttotheoriginalpositionwhilerotating
therewindknob.
3.Insertthefilmleaderintothegrooveofthespool.
andengagetheperforationsofthefilmintheteeth
ofthespool.
4.Turnthefilmadvanceleverandwindthefilmaround
thetake-upspoolmakihgsurethattheperforationsof
thefilmareengagedintheteethofthesprocket.
Fig.6
Fig.7Fig.8
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5.Closethebackcoverandpressitstrongly,and
itwillbeautomaticallylocked.Tiltupthefilmrewind
crank,andgentlyturnitinthedirectionofthearrow
untilitstopstotakeupthefilmslack.
6.Advancethefilma coupleoftimespressingthe
shutterbuttonuntilthefirstexposureposition( 1 )
inthemiddlebetween0 and2 appearsintheframe
counter.Thefilmisproperlyloadedifthefilm
rewindknobrotatescounterclockwisewhenthe
filmadvanceleverisoperated.
Fig.9
Fig.1O
Incasethereisa filmslackafterthefilmistakenuponthespool,turnthefilmrewindcrank
inthedirectionofthearrowtoobtainproperfilmtautness,andthenclosethebackcover.
Avoiddirectsunlightwhenloadingthefilm.
Whenpressingtheshutterbutton,pullthefilmadvancelever.Ifthefilmadvanceleveris
pushedtoitsstockedposition,thepowersourceisturnedOFFtolocktheshutterbutton.
Accordingly,theshutterisnotoperatedinthisstate.
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AfterloadingthefilmsettheASAfilm
speedaccordingtotheASAspeedofthe
filminuse.(TheASAratingrecommended
bythemanufacturerisprintedonthefilm
box,e.g.ASA.. .)Whenusingthefilmof
ASA100,forexample,settheposition100
ofthefilmASAsettingdialtotheASA
filmspeedscale.
ThedialnumberofthefilmASAisas
indicated,andthereareclickscorresponding
totherespectivenumbers.
Fig.11
9
SettingtheASAFilmSpeed
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1.Pulloffthefilmadvancelever,andturntheshutter
speeddialineitherdirectionuntilthedesirednumber
clicksintoplaceonthewhitelineofthebody.
2.Settheshutterspeedsothatthemeterneedle
restsinthemiddlebetween+ and— intheviewfinder
whileturningtheaperturering.
3.Properexposurecanbeobtainedinthestatethat
themeterneedlerestsin themiddlebetween+ and-
Accurateshutterspeedcannotbeobtainedbythe
in-betweensettingoftheshutterspeeddial.Set
theshutterspeedsothatthedesirednumberclicks
intoplace.
Atthe"B"setting,theexposuremetercannotbeused.
DeterminingProperExposure
Theshuttercontrolsthelengthoftimethatlightis
allowedtoreachthefilmEachshutterspeedgradation
istwicetheprecedingspeedIfthenumberisincreased
byonescale( 60to1 25).thelightreachingthefilm
at60ishalfthelightreachingitat1 25
Thenumbersontheshutterspeedscalerepresent
thecorrespondingfractionofa second( 1000to1
1/1000to1 second).Atthe"B"setting,theshutter
remainsopenwhiletheshutterbuttonisdeperessed.
Theshutterspeedselectivelydependsuponthebright-
nessandmovementsoftheobject,filminuse,etc
Youcanusethebelowtableasa generalguideto
helpyouselectanappropriateshutterspeedwhen
usingthefilmoftheASA100
Fig.13
Fig.14
Brightness
GeneralIndoors
FineOutdoors
Mid-summerBeach
Snow-covered
Mountains
Quicklymoving
Subject
ShutterSpeed(Seconds)
1/30to1/60
1/125to1/250
1/250to1/500
10
SettingtheShutterSpeed
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Brightness
BrightIndoors
FineOutdoor
Mid-summerBeach
Snow-covered
Mountains
Aperture
2to4
8to11
11to16
Theapertureofthelenscontrolstheamountof
lightpassingthroughthelenstothefilmsurface.
Ifthescaleoftheapertureringisincreasedby
one(2.8to4),theamountoflightishalf(as
indicatedintheabovetable).
Theapertureisdeterminedinaccordancewith
thebrightnessofthescene,thesettingofthe
depthofthefield,andthefilminuse
1.Turntheapertureringsothatthedesired
aperturenumberisalignedwiththelensmark.
2.Settheapertureringsothatthemeterneedle
restsbetween+ and— intheviewfinderwhile
turningtheshutterspeeddial.
3.Appropriateexposurecanbeobtainedwhen
themeterneedlerestsbetween+ and—.
Fig.16
Whenthemeter
needlerestsinthe-
side,turntheaperture
ringtotheleft(bright
apertureside).or
turntheshutterdial
tolowspeedside
Fig.17
Whenthemeter
needlerestsinthe
+side,turnthe
apertureringtothe
right(darkaperture
side),orturnthe
shutterdialtohigh
speedside.
11
Fig.15
Theapertureringusuallyhasgradationsmarkedasabove,takingF2lens
2:LightAmount
Ratio
1:Aperture
SettingtheAperture
7

Holdingthecamera
1.Restthecameraonyourleftpalmsoastoturnthe
lensfocusingringwithfingers.
2.Holdthecamerabodylightly,withyourrightfore-
fingerlightlyontheshutterbutton.
3.Pressyourleftelbowlightlyagainstyourbodyand
look intotheviewfindersteadyingthecameraagainst
yourface.Therightarmshouldberelaxedwhile
holdingthecamera.
Usethetripodwhenyouusetelephotolensesorslow
shutterspeeds.
Fig.18
Fig.19
12
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8

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Focusingisperformedintheviewfinder.
Youcantakea pictureintherangeviewing
intheviewfinder.Thefocusingiscarriedout
inthesmallroundareainthecenterofthe
viewfinderwhileturningthedistanceringof
thelens.Theimageisinfocuswhenitismost
clearlyviewedintheviewfinder.Theimageis
notaccuratelyinfocuswhenitisdeformedin
shadeinthesmallroundareainthecenterof
theviewfinder.Itisalsopossibletofocuswith
thematscreenintheentireviewfinder.The
viewfinderpresentsa clearandsteadyimage
wheninfocus.
Fig.21
Fig.2O
Fig.22
InfocusNotinfocus
13
FocusingtheCamera
9

Fig.23
Iftheshutterspeedisslowerthan1 /30seconds,camerashaketendstooccur.Hold
securelythecamerainthisstate,andpresstheshutterbuttonslowly.
Itisrecommendedtousethetripodandthecablereleasewhenusinga slowshutterspeed.
Whenusingthetripod,neverforciblyscrewthelonglegsatthethreadedportions.Itwill
causea trouble.(Usethetripodofthescrewof5.7mmlong(5.5mmintheJIS))
Nevermovetheshutterspeeddialwhiledepressingtheshutterbuttonandoperatingthe
shutter.Itwillaffecttheaccurateshutterspeedandthecorrectexposureofthefilm.
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Whenyoupresstheshutterbutton,the
apertureisthrottledandtheshutter
screenisopendtoallowthefilmtobe
exposed.
ReleasingtheShutter
10

RewindingtheFilm
Rewindthefilmwhenyoutookalltheframesofthefilm.
1.Pressthefilmrewindbutton,anditislockedinthe
depressedstate.
2.Tiltuptherewindcrank,andturnitinthedirection
ofthearrow.
3.Whenthefilmiscompletelyrewound,therotation
oftherewindcrankabruptlybecomeslighttocomplete
therewinding.
4.Pulltherewindknob,andpullitfurtherstronglyto
openthebackcover.
5.Takeoutthefilm.
6.Presstherewindknobtotheoriginalposition,and
closethebackcover.
Fig.25
Avoiddirectsunlightwhenunloadingthefilm.
Ifthefilmadvanceleveristurnedoverpredeterminednumberoftheframes,itwillstopon
themidway,andthefilmrewindbuttonwillnotremaindepressedstate.Then,rewindthe
filmwhilepressingtherewindbutton.
Neveropenthebackcoveronthewaythefilmisrewound.
15
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Fig.24
11

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Atthe"B"setting,theshutterremainsopenwhiletheshutterbuttonisdepressedtoexpose
thefilm.Usethe"B"settingtotakenightscene,etc.
Atthe"B"(bulb)setting,usethetripod,cablerelease,etc.
Fig.26
16
The"B"(Bulb)Setting
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13TakingwiththeSelf-Timer
Theself-timerisusedforselfportraitsandallowing
yourselftoincludeinthephotographwhendesired.
1.Pushthefilmadvancelever,andfullyturntheself-
timerlevercounterclockwiseasindicatedonthe
picture.
2.Whenpressingtheshutterbutton,theself-timeris
operated,andtheshutterwillbereleasedapprox.10
secondslater.
Ifyouoncesettheself-timer,youcannotcancelthe
self-timeroperation.Settheself-timeronlywhenyou
desiretheself-timeroperation.
Whentheself-timerleverisfullyturned,theshutterwill
bereleasedapprox.10secondslater.
Fig.27
14FlashPhotography
1.Whenusingthecordlessflashunit,youcanusethe
flashonlybyinsertingtheflashintotheaccessoryshoe.
2.Settheshutterspeeddialat1 /125orshorter.
Whenusinga strobewithcord,insertthesynchronization
cordintothesynchronizationterminal.
Fig.28
17
Fig.29
TakingwiththeSelf-Timer
13

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Whenthecameraisfocusedatcertaindistance,there
aretherangesfortakingthesubjectsclearlyinthe
pictureonbothsidesofthedistance.Thisrangesare
calledthe"depth-of-field"
Therearefollowingrelationshipsinthedepthoffield:
1.Whentheapertureisreduced(2to16),thedepth
offieldisincreasedtoincreasetherangesfortaking
thesceneclearlyinthepicture.
2.Whentakingfartherscene,thedepthoffieldis
increasedlonger.
3.Wideranglelensofshortfocallengthprovideslonger
depthoffield.
4.Therearrangefromthefocuseddistanceofthe
cameraprovideslongerdepthoffieldthanthefront
rangefromthedistance.
Youcanknowthedepthoffieldasbelow.
1.A depth-of-fieldscaleisengravedontherespectivelenses.Whenthecamerais,forexample,
focusedona subjectatthedistance,e.g.,3mwiththeaperturesetatf/8,thesubjects
locatedwithin8 atbothsidesofthe"I"mark(approx.2minthefrontrangeandapprox.5m
intherearrange)aresharpandclear.
Fig.30
18
Depth-of-Field
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Infraredlightraysfocusona planeslightlybehindthatof
lightraysinthevisiblespectrum.Tocompensateforthis
whenusinginfraredfilm,focusnormallyonyoursubject
andnotethesubjectdistanceonthelensDistanceScale
oppositetheDistanceReferenceMark
TurntheFocusingRinguntilthisdistancesettingisopposite
theInfraredIndexMark.
IMPORTANT:Infraredradiationvarieswiththedegreeof
infraredray intheatmosphere.Usetheinfraredfocus
settingonlyasanapproximation.Forbestresults,usethe
smallestf-stoplightingwillallowtoprovidesufficientdepth
offieldtoincludeallimportantelementsofthepicturein
thezoneofacceptablesharpness.
Ifitisdifficulttofocusthelenswiththefilterattached,focusthelensremovingthefilter
fromthecamera.
Astotheinfraredcolorfilm,followtheinstructionsofthefilm.
Determinetheexposureaccordingtotheinstructionsofthefilm.
Fig.32
19
Fig.31
InfraredPhotography
16