Mamiya Sekor 1000DTL Series Operation manual

mamiya/~ekor lOOODTL Series I
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TABLEOF CONTENTS
Descriptionof Reference Points ..3
Section 1. Specifications.
5
Section 2. Insertthe SilverOxide Battery
7
Sectioll 3. Film Loading
8
Section
4.
Settingthe FilmSpeed
11
Section 5. SelectinG tile 'ShutterSpeed.12
Section 6. FoclisingandViewing
13
Section 7. Sottirlg theExposure
14
Section 8. DepthofField
17
Section 9.
The Automatic Lens19
Section1O. Changing tileLenses
20
Section11. Holdingthe C~mera
21
Section12.
SelfTimer.22
Section 13.
Flash Photography
22
Section14. Rewinding theFilm
23
Section15.
HelpfulHints
24
S8ction 16.
TroubleshootingYour Camera25
Section17.
Meter Cut OffPoints
27
2

Descriptionof Reference Points forthe momiya/sekor
3
<
1 Seli-Timer ActivatingButton
2.Self-TimflrCocking Lever
3.N(}ckStrapEyelet
4 Automatic Reset Exposure Coullter
5. Meter' Off' Locking Buttoll
6. ShutterRelease Button with Thread·
ed CJbleRcdeaseReceptacle
7. SingleStrokeRapidFilmAdvance
Lever
8. ShutterSpecd Dial andASA/OIN
Window
9 FilmPlaneReferencePoint
10. Penta·Prism Housing
11.FP & X Flash Tflrminals
12. Rewind KnobwithRewind Cr~nk
13. Film Compartment Door Slide
14 FocusingI~ing
15. Depth ofFieldScale
16 ApertureRillg
17. Spot/Average MeterSystem Selector
S'Nitch

----_ .. _-------------
I1000 DTLCamera
18. Film Chamber
19.BatteryCompartmentCover
20. TripodSocket
2l flutomatic/ManualSelector Lever
22. ViewfinderEyepiece
23. RewindRelease Button
24,Film AdvanceSprockets
25.Film Tak,)-Up Spool
26.Film PressurePlate
27.Hinged Film Compartmenl Door
28. FilmCartridge PressurePlate
l
C!]}

1
SPECIFICATIONS:
mamiya/sekor1000 DTL Camera
CAMERATYPE
FILP;1SIZE Ar~DCAPACITY
STANDARDLENSES
I_ENS MOUNT.
I_ENS A.CCESSORYSIZE
SHUTTER.
EXPOSURE CONTROL
FILM SENSITIVITY,
NOTE. Patentpending
5
35111m SingleLensReilex '.',itil tWD separate behind-tile-Iells meterillf;
systems-ollefurspot re2,dings,onefor a'ieragingtypereadings
35mmtilm[perforated)in20 or36 <?x;;csuro standard cartridges.
55mm filA manliyo/sekor.7elementsin5 groups. Angle ofacceptance'
43degrees_
55mmfll.S mamiya/<;ekor_6olGrncntsin4 groups. f',nglo ofacceptance.
!jJ rJegrees
Praktica-mamiyo/sekor, 42nlln lIni'Jersal threadedmOllnt
55mm fil.4 Lells
55rrirTi f/l.gUlrIS
Fucalplane type
time8xposures.
Accepts 55mm tll(eaded filters alldotlletlells accessories,
Accepts 52mm Hlu"aded filters andother lens accessories,
witllspeeds from 1 to 1/1000 ofasecond2nd 'B' jOr
Built·invariable delayself-timer_
Twosepar"te m(>tering systemswithon0- CdS mder cell po~itioned on the
backofthereflex mirror Ispotsysteml,and olle cell locatedoneachside
ofthl'! viewfindereyepiece,inthe penta-prismhOlJsing iaveraging system 1_
Both!Tl8l8ring systems arecross-eollpled lo c~rnerd shutterspeed'" dnddiOl-
phragm mechanism of allautomaticlenseswithPraktica'lllumiya/sekor
universalmounts Filmad\i~nce lever s'Nitches metering Sj'sternon ~Ild
~ctLJates diaphragm ofautomaticlenses Metering systems also aCClJrately
rnea~urp- lighttransmitted thrOlJgh r,on·automatic lenses, bellows.extensiore
tlJbe~,filters and otherleres attachments_Spot/A".,r3ging seiector switch
oncamerdbody "llowslJseoreither the spo: or cl',-'erdgingsy~tHn or ex-
posure calclJl~tion.
AS/>, 25 to 3200 DIN15L, ,hi
on mamiya/sekor SpotjA'/HageMetering System.

f WithSpotand Average Metering System
t
DIMENSIONSWidth'
Height
Thickness
5.8nches 1148mml
3.7 nclles ( 95 mml
2 nches ( 51 mm) withoutlens,
VIEWFINDER Penta·Prismtypewithmicro diaprismcenterspotonFresnel lens for rapid
iocusing.Bracketsvisiblein finderindicatelocationofspot meterreading
area (6% of riGldl PointH and'S'and "A,.symbolsvi~iblein finder
indicatewhetherthe spot or the averagingmetering system isbeing used.
Exposure needleand reference points indicate necessary exposure adjust·
ments.
FLASH SYNCHRONIZATION:With FocalPlanebulbs 1 to 1/1000 s~cond.
With Class" M" bulbs: 1 to 1/30 second.
','lith Class" F" bulbs 1 to 1/30 se'cond
WithElectronic fla5h 1 to ]/60 second.
The mamiyo/sekor 1000 DTL has two 5eparate setsofflash contacts,
marked . FP" and" X' Properselectionof terminals allow corre~t synchro·
nization forall typesofflash exposures.
REFLEXMIRROR:InstantReturn Type.
FILM ADVANCE Ratcllet typefilm advance levertransportsfilm, cocks shutter andadvances
exposurecounter ina 5ingle stroke (160°1 or by a nurnbsrof shorter
strokes.
EXPOSURE COUNTERProgressivetype, from"
S" (start)to 36. Counter automatic311yresets to
"S;'when filmcomp2Jrtmentdoor is opened
\VEIGHT:Bodyonl,"1lb.9·1/2ounces1725 grams 1
6

2 INSERTTHE SILVER OXIDE BATTERY:
figure Ai
l J
8
7
TheSilverOxide battery supplied 'i/ith thecameraisespecially
designedto operate thetwometeringsystemsofthe momiya/
5ekor 1000 OTLcameraNosubstitutes.otherthanthoselisted
beluwC<lnbeused.Installasfollo\',5
TO OPENTHEBJI,TTERYCOMPARTMENT,placethe tip ofyour
thumb or forefingerontheknurledsurf~ceorthe compartment
cover [19), andlwisicounlerclocbvise untili111threeds have
beendisengaged.If theC()\ier istootight,LiseOlcointostart
theoperatiorl,but rermwethecoinafteraquarterturn and
completetheremO'JaroftheCDverusingonlyyourthumbor
forefinger
Insertthebatterynegati'ie(-)sideclown [refer te, FigureAI.
R"'placecoverci.lrefullymaking surethat the threacisarepro
pp.rlyengaeecJ Againuseonly yourthumbor forefinger,tllis
timp. usinga clodwisetwistuntilthe coveristight. DO NOT
tight.encoverwith acoin.
Thp. batterywill I~st for approximatelya 'y'8M, depenciingupon
usP..To replace,USGthefollowing Silver Oxide battery. Eveready
S-76E

CAUTION! When the camera is notin USfl, or wilen
ch1lnging lenses, always i.OCK themeV3r inthe OFF
position.Todotilis,depress the button(5) on top
of the film ild'i2lnce lever This Cill)SeS the filmad..
vance levertoretractinwardtowardthe camera body
andpreve,nts accirllmtal switching" 0.11" of the meter.
If the meter is"on" during the changing of an auto·
maticlens, serious damage may result. A,so, when
thecarne'ra isinits Eveready C2SE!, ,he metersllOuld
be lock,ed"off"to prevellt accidel1taidra;non the
battery, Tt't<lmeter" OFF LOCKING BUTTON"euto-
matically pops upagainintothe unlockflt"l position
.when thefilmadvance lever ,is puil.,rJ iJwa'y fromthe-
camera body.
3 FILM LOADING
DONOT LOAf) IN BRIGHT LIGHT.
Open film computment door !27)
of camerairefer to Figure B) by
pulling upward 011 the slide lock
!13).
8

Pullup the rewirrdkrrob 112) as
inFigure C, Place filmcartridge
into filmchamber [18), and
return rewindknob \0 itsformer
position_
Draw out thefilm leader (refer
to Figure OJ andinserttheenrJ
ofthefilmintooneof U19 slots
onthetake-upspool (25), If
noslotisinthecorrectpositi:)n
lor insertion of thefilm,the
lake-upspool may berotated by
hand untilthe slot i~ accessible,
Figure E
NOTE
Theiilmmust pass
under thetak8-Upspoolwtlen
advanced[refertoFigure E:
9

ReIernowto the exposurecounter14:,v'iindQwThe letter"S
shouldappear oppositethe triangular indexmark in theexc>o5ure
counterwindow,Next, Gentry turn rewind knobinthedirection
ofthe arrowjust erlOuglltotakethe slack out of the fill"'fl_
Depress the shutterreleasebutton f6i and2dvancethe film
again by rotating thefilm advance le'ver3S farasit will goill
the direction ofthe arr0\N.The "hutter is 3IJtomaticaily<":o[ked
',;henthe filmadvance leverismovedtoitsfarthest point.
Repeat tllisactiot1 until th~fiGure '1llPP(~<HSopposit8Ihe
triangularindex markinthe,'xposure<":Olln\8rwindow The
Cal"'flNaIS IlOWready forh~irlgthe firstpicture
Figure F
Advance thefilmwith thefilm
advanceleverIreferto Figur2FJ
whilenoting(he reverse rotation
of the take-upspool. Make slI'e
thatthesprocketsare engagedas
therilrnPElSSC';ovc;rtl18m, and
lhEll one complete wind offilm
isaround thetake upspool.Close
filmcompartmE'llt door,rn'lking
sure thatit is locked,
NOTEAsthefilmisad'van~e.j.therewind kncbwill periodical·
Iymtateina backward direction This ;rldi(;ates thatthefilm
IS beingtransportedcorrectlyinthe camera
10

4 SETTING THE FILM SPEED:
~'re H
25.
•50 64
•
100 .
. 200 . .400 .
•800 1600
.
3200
3;'
'0
80 125 160
2"0 320
500 550 ~OOO 1250 2000 2500
15 . .18
21 24 2730
33 36
16
" "
77
"
23
2"
2677
)<)
"
32 :14 ,5
Liftthe outer rinG of Hw sl,utLerspeed cJiJI{81 {refcrto Figure
Gj, dnarotate it in eitherdirection until the ASA number of the
film youare using appearsopposite the referenceline between
the leller "S"andtheASP.,window (refer toFigureHI V,hen
using filmWllichis rOlled byDIN speeds,~et th", DINnumber
opposite thelin", wilieh islocclled oel'.veenthenl.Jlncr~ls"30
and" 60" fortheshutterspeed You willnote thr,t in Fif,ure
Hthe ASAsettingis100 andthe DIN seltingi;; 21Dots
located be\weerlASAandDIN numbersUri thefitrnspeed dial
represent the following film speeds.
ASP.,
DIN
11

The 12 numbers 011 theouterface of the shutterspeed dial
arespeedsE'ttings, andrepresentfractions ofasecond.For
example. ['efer to FigureI),the number 125 on lhetii,,1(opposite
the engravedreferencemark) rep,·esenls 1/125 ofasecond.
Hence,thehigllerthe Ilumber thef~ster the shuttertravels
duringan exposure.
When handholding the cameratortaking 8 picture, always USA
a shutterspeed of 1/60 orfaster if possible(seeinstructions
for using theexposuremeter). For speedsslower lhar) 1/60
secund,theu~e ofatripod or other~IJPpnrtisrecolllillellded.
WiHI the shutterspeeddialofo'tat"B ,. the shutterIvillremaill
open as long as the release buttonisdepressedWhenIhe
buttonis released, the shuttercloses. ForexpOSl!res utilizill8"
the" B ,.settillg,the use of OJ cablerel~ase isrecommend8d
Inthe c""se of 10llgexposures,alockingcablereleasewillallow
exposures of any duration. The cablerelease is attachedtothe
camerathroughthe threadedreceptacle011 the top of the
shutter release button.
S SELECTING THE SHUTTER SPEED:
Shutt"rspeeds m<lY bechangedbeforeorafter til", film h'J~
beenadvanced and tn8 shutter cocked. TheslHltterspeeddial
mClY berotated ineither direction when settillg the desir8d
speed.Howev8r, as illdicated by Figure J. tho dialCililnot be
rotated past the 1000 positioll orthe B position
I~OTE Whell s;olecling a new shutterspeed,ne,'er pullup on
thedialfor th8lilm speed settings(ASA/OIN)will be altered
12

6 FOCUSING AND VIEWING:
13
The mumiya/sekor1000OTLisdSingl"Lens Retiex.This
means tint you 'iib'/ the suljen throughthe fJkinglens.Since
the :;arneim~g(; is tr<lllsmilL·e;d totilio8Y" c<, io til," film pmallax
i,; climilliltcr! TksLlbj(;ct is rcgistucci 011 ,11" lilnl eXactly ,I';
it is se0n :;y thE; photograpile'
Focusing(ReiAr toFigureK)the 1000OTLismaie easier by
themicrodiaprism focusing gridin the ','iewfinderThisis the
smallrOLllld areainthecenterof thefinder ','ihd", exaggHates
the Jirrer-ence betvieen the" infocus' and' Gutoffccus" image.
Byrotating (tIefocusingring :l41on the len3 barrel, th~;nicro
diaprism ca,-, bem~de\0Ji~"ppe"r, 1.... "h"'l1 lhi~ happens.the
image is ill focusfe·rboththe eyeandlilefilmForsubjects
withirregular outlines,like wooded hillsides.theentire ground
glass a'e2 ofthe ·"iewlinderIlley be utilizedforiocusing.III
anycase (excfOµt with idra-redm2teria!siwhentheimage EP-
pearsto be shJrpinthe finder,it·.vill be shacp onthe film.
\t"-hen usinginfraredfilm.first foc'JS Ul~imageas 2bo'!e.Then
notethe distance as repreS2medby thenumberwl-lieh appe2rs
oClpositethefooloigeindexmark onthelens b~rr,,1R0l~l~ the
focus in;:; ring untilIlli,-, r'~'mb(3riscppe,sitfO the small r,~dIllar~,
andthe lens \';ill beeorr,~~tlyfccu,ed iorinfra·red pilotography
at lha;: di5tane~,Thisis Il(X8S',Jry beciw5e infra redrilmis
sensitive-::miv to infr,l-rcdli81,t relYS, _._-thiel' f()~,,~ emd pi,,,,,,,
slighJ!y ilphind th2tof ordinarylight r""s
l
J

7
"
Therearet"vowaysofde,ermining correctexposurewith the
morniya/sekor 1000 DTLWh;ctheryou us," Ule Spotor the
Average syst8rn will dcpr:mullpontilel::,'pe01 picture youare
taking. In eithercase, before takingthereading,set theAuto-
matic/Manualselactor le'ver(211onthe lens barrelto theletter
"A" so that 111'2<'lutornJtic di~phrdgrll ledure 01the lensis
acti'.'ated.
SETTING THE EXPOSURE
l
Fi'gure L
"SPOT" Reading:
The" Spct"method ofexposurecalculationisespecially valu-
able ,-"hen the mostimportant uea of the picture is either much
light'Cr or Illuchdarkrthf\n the generdl picturecrea, orIn
!all~iscapes, ','ihere skylightwo"ld register a rnuch higher reading
thall trees orbuildings21ground level. Sud asituation would
caUS2 underexposureifthesubject wer~ to b(, measured 'NiU,
"co,wentional,,)v8roging rfldel frorntheC31ller,1position
"Spot" madir'gi:; al:;ouselul torsubjecbunderinsutticient
IjgtlLirlg5~chas indoo, 5hots ornight scenes,bec<luse the ex-
posuremeter needlereactslaster Urlderthese cGnditionsthan
Jening a'Jerage reJding
T~'~b-;:ain J spot reading, set tile shutter 3( the speed atwhicll
you 'Nish t() takethe photograph MO\.'fl theSpo\jAverdgese-
I"norswitcll 1171 towardthe IRtter ' S'as ler dS it '"ii:1g0
iR0hr to FigureLL
14

Lookingthroughthe viewiinderyouwill notice thatthe small pointeratthe bottomoi the fieldis now
ontheletter"S" bptl'.'ef'rl til" rn,,1erar"~ brilck"ts These brackE'~s(Jutli",,, Ihe;,rh'of~,ensilivity, ~bout
6% of the totalpicture you are viewing.Focus thelens so that the subjectarea is criticallysharp.
Then aim the camera so that the bracketed area falls upon tl18musl important part of the pictureyou
are about to take (RefertoFigurAM) Make surethat thebrackets donotinclude any part ofthepicture
that is eitherlighteror darker than the sectioil youare reading (Reierto FigureNJ
Correct Use of
SpaI Meter
15
Incorreci Use of
Spot t\1eter
FigureN

Pressthe film advance leverIrefer to FiglJre 0) towardtile
camerabody as tar asit ,....illgo. INOTE If thefilmadvance
le'"eris inthemeter Off·Lod; positioll, moveloverilway from
body until lockingbutton {51 ~naps up,)While pressing the lilm
advance lever towardthe camera body as faras it will go, rotate
theaperture ring(16)(located 011 thelens)until tho, needle at
theright of the finderis centered betwflfln the apell elldsof
thereversed letter" C"(refer toFigurePIThE:expoc;urois now
set, with the selected area ofthe picture beingcorrectly exposed
You may nO'N releasethepressure onthe advance leverand
makefinal compositionchanges beforetrippingthe shutter.
"AVERAGE"Reading:
When thescene tobe photographed ismade up ofareas of
equal illli;ortance, anovsrall.J'Ierr'gGre,,,Jing ,....illr()sultintile
oestpicture, To accomplishtil is, setthe d0Sired shutter speed.
and pushthe Spot/twerage selector switch towardthe letter
"A.The rointer inthe lowersectionof tite> V'icwfilldel' now
moves outside theSpot Meter br?r.kelfHi areato the leiter
"A",indicating that thewhole picture isbeingm221S11redbythe
meter, Feclis on the subj,,[~t area C~nterthe rlgedleen the
reversed "C'as above,by roldting theaperturf! ringwhile
pressing the film advance lever.Whl"n takingall 'A'verngr:"
reading,thepicture shouldbecomposl"d bp.forethe exposur~
isadjusted
ExrJ'",cMet~'
Needle
(iU~ ,
~
_,_ " ,,,'''_'', W
., ~-(O,,~C'
I
"' EXfo""e
Spol;A'"JGScI,d
.. ,cclOi
-A~,M~c'u
Figure rI.red b, Sp(')1 "1"1
,,~·e' 01i".'"
,.00",,,oJE'Jnp"
~
Figure a
'6

Exposure Setting WhenUsingNon-Automatic lenses and Close-UpAccessories:
When usillg pre·setlense~, nonautomaticexterls'ontube~,bellow';,miuw;r:orws,r:rotnsr closeupacces·
sories,the lensdiaphragnlmustbe manuelly operated untilthe cocred expo~ure oettifl15 isdetermined.
The 1000 OTLmeter requiresrio~peci,,1calculations 6.. cJI'lPen<o.ationste re2dcorrectlythrOUGhextell
siontubes,bellmv~or oJ,her~ttachmeflt5,Tilemeter reading must be obtainedafterfinalfocus.since
exposure isinfluenceliby di~l"nccbctv..'eentilelen", and the lilmActivi"ting thenwterand ",ettine
the 8xposure is accomplished as refsrenceaabO'.'e
NOTE: You may reversethe above ;;rocedur~ il yuu ',",-ish tv teke d rJictur~ ill d pwticul~' dperLure 101
Clnyre~son III this case, in"teMI ofchoosing th~ shutter speedfirst,select thelens opellingdesired
beioretaking the rearlingThen,centerthe"iOel!l~ in ltl(,'reversecJ "C' by r'-Heling til", shutterspee>d
dial.
8 DEPTH OF FIELD:
V-ihen a cam8r"lensisfocusedto'£ivea sharpilllageof a particula(subject,some uC1jects sli£htly
behind,aswell as sonle objects ;Iightly 2headofthe subject focusedon '.'iiil appeal to beshar'pThe
distance betwe~11thenean,st andiortilest objectsvihichareill fOClI". iscalledDepthof Field
Deptilof Field changeseacll timetilefecusing distance changes,becominG greaterasthelens isfocused
on points fa,'ther from ttle C3merap8sitiol1.whileci2cre;'"il,gasthepointof foclis becomes clese'.
Otherfilctorsinfluencil1gdepthoffield arethefocal length of thelens and the diaphragmopel1ingat
whiCh the ricture is taken.Th"~hnrte.rthe foe;;1 I"ngfh~nd/0r the smaller tllP I"ns rliarhragmopenil1g.
the greatertheclerJtll 01 fieldfOI'~ny gi'1("nlocusingJist"rrce,ilnd 'vice verS2
17

Properuse ofdepthof fieldc~n enable the photographerto utilizethe prirrciples of"selective focus,"
which otten mean,thedifferencebetween ordinary snapshots and picturesofquality. For example,
theproperselection 01a"sharp"zone of focus caneliminate an un'Nanted objectinthebackground.
The samecouldbetruefor foreground objects
Whenyouwish to viewthe depth of field beforetaking a picture'",ith th~ 1000 DTL,set thelensdia"
phragm on 'automatic'Focuswith the microdiaprism as explained befol'e, Thenpressthe film
adv3nceleveras iltaking ameterreadingThis causesthe lens diJphragmto close Ie,g stoppeddown),
II you have alreadyt~ken themeterreading,the lens i5now at the diaphragm openineatwhich the
picturewill betaken
The depth offieldno'!,:appearsinthe finder exactlyas itwill be in thefinishedpicture.By changing
tile focus whilethelellSdiaphragmis stoppeddown,youcallselectthe area of sharpness ill your picture.
Whenusing non·automatic orpre-setlenses,the diaphragm mustbe closedInallually,but the same
result-; can beachieved.
You may also determinede,cth of field by checkingthe scale {l51 onthelens barrel IReferto Figure OJ.
Numhers representinG lellsaperturesiJPpe~,· Cit the nearandfar limits ofdepth foranygiven focus
distanceandlensopening.
·Forexample,if the standard lensis focusedat 30 ft., oneof the
linesrepresentingtill appears at the 15 It. mark, The other
lin!'! {again representing f/IIJ is at theinfinitysymbol. I,Vhatthis
meafl~ is Lh~lifapicture istaken withthelensfocusedat
30 ft., and(r.edi2phragm is set at1/11, allobjectsill thepicture
between 15 ft. and infinity will be infocus. This method is
extremely valuablewhenthe lensdiaphraelll is stopped dOWel
too fartualiowenoughlight forthepictureto beviewed through
theviewfinder anddepthoffieldset vislJ;,lly

9 THEAUTOMATIC LENS
Figure R
The sLanriMdlens onthemomiya/sekor 1000 DTL isec,uipped
.'iith a tully automatic diaphragnlThis meilrlSthat you may
viewasceneIvilh :;11li!',h! passing through <'lwideOP811lens,
butactu311ytake thepicturethrough a stopped <irWln aperture
asitldiciltedbyth~"'lOter.
1
in crder for theautomatic featur",s of the lens tooperate.set
theAutomatic/Manualselector lever {21i onthe lens barrAlon
"A' !Reierto Figu"f' RIYellJ I'.'ill notieR tllat after takillg a
meter readinBinthenormalmallllPr, releasingOw prossureon
the film advancele',·er causes the lells diaphragm toopen up to
its'Nides! aperture.Howeverwhen rou pr"5sth~shutt",rr(CiBilse
bl!ttontot3ke a picture, the lens automaticallystopsdow'l) Clgairl
totheap~rture indicctedby themeter,The diaphragm remains
stoppeddown onlyfortil2installtit takesforthe exposure to
bemlfie,Jnd r"'opens itselfimmediately,sotllat tile eye has
almost llOscnsali:)noft'iJvingbroron'blClckfOoout,"
Theautomaticfeatureofyourlens does notworkwhen usedon
non-automaticbellows oron pxtensinntubesIn ordertoread
tilerneterif! this case, proceed8S explained ill the earlier sec·
tion onS'~tting theExposure
19