Zorki 4k Manual

							
ZORKI-4K is a single-lens rangefinder camera intended for takingvarious amateur and professional pictures on black-and-white film.
The camera is provided with a shutter setting lever and a self-timerand is rM, and Xr synchronized.
The viewfinder and the rangefinder of the camera have a commonfield of view and the camera eyepiece is provided with a device foradjusting it according to a particular eyesight. Such a design of theviewfinder ensures perfect focusi-ng at the moment of picture taking.
The lens is focused by turning its focusing ring. In so .doing the range-finder operates automatically irrespective of the focal lenglh of an ln-terchangeable lens.
The camera uses a new type of a take-up spool to simplify the cameraloading. 
The carnera accepts standard cassettes with invariable slit.
The camera is delivered in two variants: with INDUSTAR-50 orJUPITER-B lens.
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							Framesizermm . , . o . . o . .24X36
Perforatedfilmwidth,mm. . . . ,
Number of frames for one loading , .
Focalplaneshutterspeeds . . . . ,
Mechanical back focal distance, mm
. ,35
. .36
Viewfinder eyepiece magnification,
Eyepiece adjustment, diopters
times .
oaaa
I to l/1000 s(automatic), 8
(by band) and slowshutter speed
28.3
r.l5
+2,5
KO 3.5x0.6
tlq
Thread of shutter button for cable release .
Tripodbushthread,inch r . o . . . 
						

							
Lens
Nominal focal length, mm
Relative aperture range
Focusing range, m
Field of view, grades
Lens stiating thread
Lens mount thread for lightf ilters
Seat for sun shade, mm
Overall dimensions of camerawithout case, mm
Mass of camera without case kg
INDUSTAR-50 or JUPITER8
50 50
f/3.5 to f/16 tlz to Il22
I tO r. oon I tO .. @
45
M39X I
45
M39X I
CnM 35.5X0.5 CnM 40.5X0.5
937 o 42
143x88x94
0.6 0.7
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							Th. !te!g{r_t Manual contains brief descriptionthe ZORKI-4K camera, but it should not beon photography.Bef ore starting to use the camera thoroughlyprocedure according to the given Manual.
and main rules of usingregarded as a handboo[
study the operating
The camera is a complicated optical mechanical device which shouldbe handled carefully, kept clean and pfotected from blows, moistureand sharp changes in temperature.Load and unload the camera in diffused light trying to avoid cl irectsun rays. When removing the camera cover see td it-that the cassettewould not fall out.Set shutter speeds only with the shutter cocked. Do not turn theshutter spged dial over the interval between figures 30 and l.
Alw.ays set .the shutter till stop to- avoid blanklrames during exposing.If the shutter faiis to set, iheck the position of the shut-ter ieleaJebutton and the shutter disengagine bu-sh. Before settins the shutter
1!t.y should be turned in the c-iockw-ise direction till stop.-Do not point the lens at the bright sun to prevenf burtains fromburning through 
						

							
Do not touch surfacgs of optical dgtails with hands since this t-t likely
i-o- dunr;g;-ih;ir ;;;iing. clean the coate.d optical details only. flgf
rtriOJ Tuittr a clean soft piece of fabric dr cotton wool slightly
moistened *itfi i..titi.O alc6hol, ether (petroleum or sulphuric), or, if
these means are absent, with toilet eaudeCologne.
To close the case with the camera in it check that:
a) the case tripod screw would be tightened uP;
b) the lens would be set at mark t oo  of the distance scale;
;i th. ;h;it.; gp;.i dtT wouia be set at any shutter speed except for
those from l/60-to I second.
When using the camera in frosty.weather (below -10C), \..p it under
i;|f-riii.[.ioitrui,- tiiiing it oirt only foi the moment of photogra-
phing.
If the camera is brought from cold in a warm room, do not take
it out of its.case for 2-3 frouis to let it take the temperature of
ambient air.
Keep the camera in a closed carrying case... In so doing the lens
shoulcl be .upiu? unJ thA- ihutter  rn? self -timer should 5e released.
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							fi9:. 1.. Front view. l-self-timer lever; 2-self-timer release button;3-f lash lamp socket; 4-rangefinder window; b-range-viewfindeiwindow; 6-lens; 7-detachable cover locks; g-triiod nut 
						

							
Fig. 2. Top view. 9-diopter adjustmgnt lever; lO-attachment groove;
I I ]-shutter speed dial; i z-synchronization scale; l3-shutter release
button; I4-exposure,ir:Hjn#ltjflTfil .iuril,* |ever; I6-svn-
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							Fig. 3. Rear view of camera with coyer removed.eyepiece; l8-film rewind knob; lg,-csssette spool2l-take-up spool ; 22-shutter disengaging birsh;
l7-range-viewf inderguide; 20-sprocket;23-film track slide 
						

							
Fis. 4. JUPTTER-8 and INDUSTAR6O lenses. 24-ring with aperture
rcil.; 25-focusing ring with distance scale and index mark of apgL-
iuii scale; 26-dEpth-df-field scale; 27-aperture setting. ring with
index maric; 28-foiusing ring with aperture scale and distance scale;
Zg-depth.ot-Iield icale; &g-lens mounting ring10
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