.24X36

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(2) www.orphancameras.com. ZORKI-4K is a single-lens rangefinder camera intended for taking various amateur and professionalpictures on black-and-whitefilm. The camera is provided with a shutter setting lever and a self-timer and is 'rM, and "X'r synchronized. The viewfinder and the rangefinder of the camera have a common field of view and the camera eyepieceis provided with a device for adjusting it according to a particular eyesight. Such a design of the viewfinder ensuresperfect focusi-ngat the moment of picture taking. The lens is focusedby turning its focusing ring. In so .doingthe rangefinder operatesautomatically irrespectiveof the focal lenglh of an lnterchangeablelens. The camera uses a new type of a take-up spool to simplify the camera ' loading. The carneraacceptsstandard cassetteswith invariable slit. The camera is delivered in two variants: with INDUSTAR-50 or JUPITER-B lens..

(3) Framesizermm. .. ,. .. .. .. o. .. .24X36. P e r f o r a t e d f i l m w i d t h , m m .. . Numberof framesfor one loading. . ,. , .. . .. ,35 .36. Focalplaneshutterspeeds. .. .. ,. o. .. .. Mechanical back focal distance, mm Viewfinder eyepiecemagnification, times Eyepieceadjustment, diopters. o. a. . a. Threadof shutterbutton for cablerelease T r i p o d b u s h t h r e a d , i n c hr . o . .. a. . .. I to l/1000s"8'' (automatic), (byband)andslow shutterspeed 28.3 r.l5 +2,5 KO 3.5x0.6 tlq.

(4) www.orphancameras.com. Lens Nominal focal length, mm Relative aperture range Focusing range, m Field of view, grades Lens stiating thread Lens mount thread for light f ilters Seat for sun shade,mm Overall dimensionsof camera without case,mm Mass of camera without case' kg. INDUSTAR-50or JUPITER'8 50 50 tlz to Il22 f/3.5to f/16 I tO. r. oon. I tO. 45 M39XI. 45 M39XI CnM35.5X0.5. 937. .. @". CnM40.5X0.5. o 42 143x88x94. 0.6. 0.7.

(5) Th. !te!g{r_tManualcontainsbrief descriptiona n d m a i n r u l e s o f u s i n g the ZORKI-4Kcamera,but it shouldnot be regarded as a handboo[ on photography. Before starting to use the camera thoroughly study the operating procedureaccording to the given Manual.. The camerais a complicated opticalmechanicaldevicewhich should be handledcarefully,kept clean and pfotectedfrom blows,moisture and sharpchangesin temperature. Load and unloadthe camerain diffusedlight trying to avoid clirect sun rays. When removingthe cameracover seetd it-that the cassette would not fall out. Set shutter speedsonly with the shutter cocked.Do not turn the shutterspgeddial over the intervalbetweenfigures"30" and "l". Alw.aysset.theshuttertill stopto-avoidblanklramesduringexposing. If the shutter faiis to set, iheck the positionof the shut-ter ieleaJe button and the shutter disengaginebu-sh.Before settins the shutter directiontill stop.1!t.y shouldbe turnedin the c-iockw-ise 'burtains Do not point the lens at the bright sun to prevenf from burning through.

(6) www.orphancameras.com. Do not touch surfacgsof optical 'clean dgtails with hands since this t-t likely the coate.doptical details only. flgf i-o-du"nr;g;-ih;ir ;;;iing. "rtriOJ Tuittra clean soft piece of fabric dr cotton wool slightly moistened*itfi i..titi.O alc6hol,ether (petroleumor sulphuric), or, if these means are absent,with toilet eau'de'Cologne. To close the case with the camera in it check that: a) the case tripod screw would be tightened uP; 't " b) the lens would be set at mark oo of the distance scale; gp;.i set at any shutter speed except for be wouia dtT ;i th. ;h;it.; those from l/60-to I second. -10'C), When using the camerain frosty.weather (below \..p it under foi the moment of photograonly oirt it tiiiing i;|f-riii.[.ioitrui,phing. take If the camera is brought from cold in a warm room, do not of it out of its.case for 2-3 frouis to let it take the temperature ambient air. case...In so doing the lens a closed carrying 'unJ " Keep the camera in thA-ihutter rn? self-timer should 5e released. shoulcl be .upiu?.

(7) fi9:. 1..Front view. l-self-timer lever; 2-self-timer releasebutton; 3-f lash lamp socket; 4-rangefinder window; b-range-viewfindei window; 6-lens; 7-detachable cover locks; g-triiod nut.

(8) www.orphancameras.com. Fig. 2. Top view. 9-diopter adjustmgntlever; lO-attachment groove; I I ]-shutter speed dial; i z-synchronization scale; l3-shutter release. I6-svn.iu'ril,'"*|ever; I4-exposure,ir:Hjn#'ltjflTfil button;.

(9) Fig. 3. Rear view of camera with coyer removed. l7-range-viewf inder eyepiece;l8-film rewind knob; lg,-csssette spool guide; 20-sprocket; 2l-take-up spool; 22-shutter disengaging birsh; 2 3 - f i l m t r a c k s l i d e.

(10) www.orphancameras.com. 10. Fis. 4. JUPTTER-8and INDUSTAR'6Olenses.24-ring with aperture 25-focusing ring with distance scale and index mark of apgLrcil.; 'scale; 27-aperture setting. ring with 26-dEpth-df-field scale; iuii 'aperture scale and distance scale; index maric; 28-foiusing ring with Zg-depth.ot-Iieldicale; &g-lens mounting ring.

(11) 5 . I . C A M E R AL O A D T N G Turn off the screwon the casebottom and remove the camerafrom the case. Raisetwo locking clips on the camerabase plate and turn them as far- as they will go; mov6 the coveralong its groovesand tdke it ofT the camera. Placethe cassettewith film in the seat and put it ' on the cassette spoolguide. . -of Full the film end-out the cassetteas long as to the cameraedge,insert it in the take-upspoil slot. see that a sprockettooth would enter a pdrforation hole. Insert the detachablecover into the cameraguide groo.ves a.qdmove it as far as it will go. GivE the locking clips half a turn till stop anl then sink them into their recesses. set the shutter,-press the releasebutton.on setting the shutterthe film movesbv oneframe.To'advance part of f ilm to' the f ilm gate set and unexposed releasethe shuttertwo times.. n.

(12) www.orphancameras.com Before releasingthe shutter after the sec.ondsetting set f igure "0". 6f titg exposurecounter dial against the in?ex mark on the shutter setting lever. lf ltre film is wound tightly in the cassette,the film rewind knob will rotale when the shutter is b.ilg u.t. Sfiouia the film be wound loose in the cassette, itte t nob will fail to rotate at the initial frames. Now vou can put the camera into its case' Do not i;;g.f io tighien up the tripod screw in the case bottom.. IG 5 . 2 .S HU T T E RS P E E DS E T TN. T2. may be set9.nly*ilq the shutterset' Shutterspeeds puii up the shutteispeeddiai and turn it till a re' oriiua"ftuit.i ip.uO value is set againstthe index H;;k. 16Ga; tti. oiul in sucha wfy that it would be fixed withoutPressing. corresponFigureson the shutterspeeddial denote '(8" - handeiti;'f*;dio;s of a secondand letter shuttersPeed. conTrolled l- second,set the To obtainanixi;.ti* longerth1o "B'l' In this casethe dial indexmark againstle"tter buttonis pressed' the-release ;h"t6-i;ird;;;'titt.

(13) I. To obtain a still longer exposurethe releasebutton can be fixcd in this position by turning it counlerclockwiseas far as it will go. The exposing over, return the button into the initial position. To avoid mechanismdisengaging, do not rotate the button without need. It should be rememberedthat to set the shutter speedsof l, ll2, ll4, l/8, l/15, l/60 of a second,an additional effort is required to wind an additional delayed-actionmechanism spring. When the shutter speed d ial is being ieset f or a shorter exposuretime, the delayed.actiott mechanism is heard operating. B e s i d e s i t , w h e n s h u t t e r s p e e d s o fl ; l 1 2 ; l 1 4 ; l / 8 ; l / 1 5 a n d l / 6 0 t h of a second are used, the-shutter speed dial is fixed somewhat higher as comilaredto other shutter speed settings. t. 5 . 3 .L E N SA P E R T U R ES E T T I N G aperturevaluewith the indexmark (dot) by rotating Matctra selected the ring with an aperturescaleof JUPITER-8lens (or the ring with the indexmark of INDUSTAR-50 lens). For convenience eachof the indicateillenseshas two equivalentaper' ture scalesand two corresponding indexmarks,. t3.

(14) www.orphancameras.com. 5,4, FOCUSING Objectshaving sharp contoursshouldbe selected. 1,4. IOr IOCUSlng. Watching through the range-viewfinder eyepiece, turn the diopter adjustment lever to obtain the sharpestimage of an object in the eyepiece. In the centre of the viewfinder field of view there can be seen a yellowish rectangle with a double image of the object being viewed in it. Turn the lens ring to match the two images of the same focusing -Keep in mind that the image should be object. foCusedin the centre of the yellowish field. The image can be focusedby the lens distancescale calibrate-d in metres as well. In such a case the distance to the object being photographedshould be known beforehand. The viewfinder enablesto see the limits of picture. For correct framing bring your eye as close to the eyepiece as possib-le;in do doing . the - yellowish r6cfanele should be piaced in the ceitre of the viewf inderTietAof view. if the aboverules are not follo' wed, framing is likely to be wrong i. e. the limits.

(15) of imageseenin the viewfinderwould fail to cor' iuti""[ to itre frame limits on the negative. To take a pictureof severalobjectsplacedat diffe' ;;i aiaGnt;jiom thi camerarus€ ihould be made ;i"; ?;pi[-"f-fietA scale.ftre scale consistsof the apertur.nu*blr! iepeatedon both sidesof the main ' ir|iex.il;il'Wfien ftre apertureis. set and the lens il f;diud,-itte-iiniitJ of'depth of field can be read pairs'on the distancescale. ;gffi;iil'ei;;umler with th. lens focusedfor 3 m and For example-,. uperturedi'iig, iwo figures2.? ry and 4.8 m on the distancescaiJwiit-U.iet againstdivisionsI of the 'f ield scale. depth-of Thesedistancesare called the near and f ar limits ;f'eupth J ii.ia. OU;gctsplace-dnearerthan 2.2 m ;; frnliir ittan-4.8m,'will'be blqrredin the.picture' field may coincidewith o1iitl-l-ipth-of i'dlui iimii-;;tk "-{ ''--oi even gomq the td; infinifv .b9yo19 placed distdncesdate.l; sucha cise all the.o.bjects.initv b;ffi;;; th;'ft;i timif of depthof field hnd inf will be sharPon film. It shouldbe kept in mind tha! the larger Ih" aper' i;*, ih; smalleiis the depthof f ield and viceversa.. 15.

(16) www.orphancameras.com. 5.5.PHOTOGRAPHING To take a picture do the foltowing: a) load the camera; b) take the cap off the lens; c) set the lens aperture (if required put a light filter or a sun shadeon the lens); d) set the shutter;, e) set a required shutter speed; f) watching through the eyepieceof the range-viewf inder, point the camera at the object, adjust the eyepieceaccording to your eye and focus the lens; g) smoothly press the shutter release button. NOTE. When using shutter speeds slower than ll30 s it is recommendedto mount the camera on a tripod and to screw a cable release into of the releasebutton bush.. 16.

(17) 5 . 6 .C A M E R A U N L O A D I N G When the exposurecounter shows figure 36 rewind the film into- the cassette.For this almr a) remove the case; b) turn the shutter disengaging bush in the clockwise direction as far as if will ko; c) pull the film rewind knob up-wardsand rotate it in the arrow direction till the feel of the applied force indicatesthat the film end has left the take-up spool; d) take the cover of f the camera and remove the cassette; e) turn the shutter disengaging bush counter. clockwiseas far as it will go. lever lails to set in action the If the shutter settine -after rewinding the film, turn shutter mechanism the releasebutton clockwise as faias it will go or turn the shutter setting lever simultaneouslyholding the sprocket. Set the shutter and relese it to check the niechanismoperation. Mount the cover on the camera or load the camera cassette with f ilm according to pawith another"Camera loading". ragraph 5.1.. T7.

(18) www.orphancameras.com. 6.1.SELF-TIMEROPERATIN9 The self-timeris used when one wishesto photographoneself.For this aim do the following:mount the cameraon a tripod, set the shutterand set the self-timerby turning the self-timerleverdownwards as far as it will go. Set a requiredapertureand shutterspeed;selectan object and focus the lens. Press the self-timer releasebutton and take your place in front of the lens. The shutter operatesin no lessthan 9 secondsafter pressingthe button. Thb ZORKI-4K cameraallows to use flash lamps when taking picturewith the help of the self-timer.. 18.

(19) 6 . 2 .P H O T O G R A P HNI G WITH FLASH LAIITPS To take pictures in conditions of poor illumination ifmtt- iirfipr are used. For this aim plug a tip. of ;ilasdGtitp connectingcord into the iamera socket' "M" of the synchro' To use a flash bulb set letter nization scale against the dot on the camera plate' 'is to be used, letter :'X" When an electronic flash strouiAbL set against the index dot of the synchronization scale. The shutter speed of USO is better to use when when gating photographing'with flash lamps, i:.!:. "8" is not desi' is f uli Handlcontrolled exposure iabie when using ttash lanips, since a considerable amount of stray Tight gets into the camera and may result in a blurred image. NOTE. When photographing without flash lamps, the synchronizition 5cale position may be free.. 19.

(20) www.orphancameras.com. 6 . 3 .L E N S C H A N G I N G. The pictureis taken with a 135mm lens.. z0. lenThe ZORKI-4K acceptsall the interchangeable s e si n t e n d e df o r Z O R K I t y p e o f c a m e r a s . To change a lens set the shortest distanceby the distancescale and screw the lens out of the camera by turning it counter-clockwise. W h e n s c r e w i n gi n a n i n t e r c h a n g e a b l e n s , b e s u r e t o s e t i t a t t h e s h o r t e s td i s t a n c ea s w e l l . T o t a k e p i c t u r e sw i t h i n t e r c h a n g e b llee n s e sv i e w i n g s h o u l d b e p e r f o r m e dw i t h t h e h e l p o f a u n i v e r s a l o r i n d i v i d u a lv i e w fi n d e r w h i c h s h o u l d b e s e t i n t h e camera attachmentgroove. lensesare focusedin the samewa5r Interchangeable as the main (standard ) one. H o w e v e r ,i t s h o u l db e k e p t i n n r i n d t h a t s r l r c h a n ging of the main (standard ) l e n s f o t a n o t h e ro n e iequires additional adjusting of this lens to the cam e r a ..

(21) R E F E R E N CTEA B T E of sensitivityunits of differentsensitometric systemsfor photographic rnaterialsof normal contrast(y:0.8*,1.0) rocT-ASA 16 20 25 32 40 50 65 80 r00 130 160200 250 320 400 500 DIN. 13 t4 15 16 t7 18 19 20 2t 22 23 24 25 26 27 28. Vneshtorgizdat No. 5159M Ord. 383. 2T.

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