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Iskra-2 User manual

User manual for Iskra-2. 24 pages in English. Read the original PDF, download or print a copy without registration.

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Brand
Various brands
Model / document
Iskra-2
Document type
User manual
Language
English
Pages
24
File size
1.5 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 2 · Read text
ROLLFILM
  RANGEFINDER
   CAMERAS
   ISITRA
   &
  ISTTRA -2
   IIV^S?RUCTIO.N
   BOOKLET
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ATTENTION

  The camera olskra, is the exact and. complex mechanism.
  Before to use the camerq", carefullg stttdA presented instruetion manual.
  The camera works only with a film.
                                                                                       lens  The front couer can be closed only after remouing all filters and with the
  adjusted to infinitg (sgmbol a).
                                                                                                                                                                        j  TLrn on the self-timer onlg utith cocked slutter.
                                                                                                    $  Don't install green digils at scale of slutter speeds against ttrc index.
  Preserve tlrc selenium m.eter cell (aI Iskra-2 cam.era) from lorry exposition at direct
sun light, it utill diue the ell temporary weak, and results of light m.etering uill wrong.
   Small diuergences behaeen the description belotu and gour camera are possible, due
to teclvical deuelopments in tle design of tle camera.                                                                                                 J
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INTRODUCTIOlV                     The Iskra camera was created in 1960 on the
                                                       basis of the camera Agfa Super Isolette. It was
   After the 2nd World War the USSR, as a winner-      more complex and modern camera than previous
state, took a lot of German plant equipment as       Moskva, but not so reliable.
reparation for Soviet plants destroyed by Hitler's         During 1960-1963 were issued 38,722 Iskra
army. Leica and Zeiss Icon equipment was also         cameras.
imported for manufacturing cameras and optics,         At 1961 was issued Iskra-2 camera, which had
which became the main base of "Krasnogorslgr        simple light meter, which was not connected with
Mekanichesky Zavod" (Krasnogorsk Mechanical        shutter and lens. Even the light meter was very
Factory), known as KMZ. KMZ factory received a        simple in modern terms, it looks that KMZ had the
good experience of manufacturing folding cameras        trouble with Iskra-2, and during 1961-1964 were
since production of Moskva 6x9 cm cameras, and        issued only 6,118 Iskra-2 cameras.
later on began to produce Iskra 6x6 cm cameras.        Most of the information presented in  the
Russian word "iskra" means the "spark". "Iskra"         instruction manual is true for both types of Iskra
was the first Communist party newspaper, and      cameras. Several parts dedicated especially to
thus the camera was dedicated to building of a        Iskra-2 camera are marked as: (for Iskra-2 only).
Communism at USSR.

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Page 5 · Read text
1. GENERAL DESCRIPTION                   shutter speeds allows making shooting at various
                                                                      light exposures of objects and at their movement.
  The camera Iskra is a collapsible film camera        The mechanism of the self-timer allows taking
with a format of 6x6 cm and with a built-in lens, the        pictures with any automatic shutter speed after 9
coated optics and central shutter. The camera is         15 seconds after pressing on the shutter release                                                            -intended for various amateur and professional                                                              button.
shootings.                               The mechanism of  synchronization allows
  The camera Iskia is supplied with the optical      making shooting with expendable or pulse flash
view-finder and rangefinder combined at one         units.
eyepiece. The optical viewfinder and rangefinder             Iris aperture changes a relative aperture on a
with a base of 55 mm are conveniently located in       uniform scale: 3.5; 4; 5.6; 8; 11; 16 &22.
the metal body of the camera. Exact focusing is         In the case of the shutter is mounted four-
achieved by moving the lens with shutter.                 element lens with the coated optics "lndustar-58"                                    jI
   Increase of the optical view-finder is 0,74x.               ("?In4ycrap-58"), with focal length 75 mm and
   Central shutter "O3ru- 18C" provides ten        relative aperture 1:3.5. As known, all  Soviet
automatic shutter speeds (1-1/500 sec) and also       Industar lenses are copies of famous Zeiss Tessar
any exposition by hand ("B"). The large range of                                                                                                                                                                                                                       Ii
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lens. The corner of a field of sight of the lens is        photographing.
equal 55 degrees.                                                 Built-in light meter at Iskra-2 camera dont need
   By turning the barrel of the lens that connected      any power source, the meter cell uses sunshine
with the rangefinder, you can overlap two images        ener$/ and provides receiving EV numbers to install
seen in the view window into one to bring the         different pairs of "shutter speed/aperture".
chosen subject into focus.                                  All parts of the camera are conveniently
  The advantages of the Iskra camera include:       arranged to manage the camera whether shooting
exact focusing, the central shutter with ten       from the hands or from a support tripod. The scale
automatic shutter speeds, manually operated long                                                                      {     of distances, apertures, and shutter speeds, and allshutter speed "B", the mechanism for shutter        parts of operation are located so that work with the                                                 {    camera proceeds quickly and confidently.release by self-timer, and the synchronization
                                                 With one film loading, the camera can acceptsocket for two kinds of flash units, film rewind  +\reagainst the stop, complete blocking protecting from        twelve snapshots in a 6x6 cm. format.
double snapshots or the missing non-exposed         To prevent shooting two snapshots on the same
frames, automatic interrelation of  installation        frame, the film winding knob and shutter release
shutter speeds and aperture, work with the help of       button are connected by a blocking mechanism.
a light scale considerably facilitating process of      The shutter release button can be pressed and the

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Page 7 · Read text
shutter will work only if the film has been wound to                        2. NOMENCLATURT
an unexposed frame.
  On the case of the camera is the nut with a                            2.1. Camera
standard groove of 318 inches which allows
establishing the camera on a support. The camera       The camera "Iskra" has the case made by
has straplet attachment points.                         molding under pressure, which makes the device
   The camera is supplied with a case from a high-        rigid and steady. To open the camera, it  is
quality leather. The case is convenient for caring       necessary to press the button 5, simultaneously
and supposes shootings from hands and on a        holding a cover.
support, not taking out the camera from a case.             To close the camera  it is necessary to press both
   Weight of the camera without a case is 850 gr.       right and  left  levers simultaneously and,
for Iskra and 925 gr. for Iskra-2 camera.                 overcoming the resistance of the springs, fold the
   Overall dimensions of the camera: in combined        cover with a smooth movement of the fingers until
situation is 152x110x48 mm, with an open forward        the closing of its lock.
cover is 152x1IOx98 mm.                         To close a forward cover of the camera it  is
                                                              possible only at installation lens on "infinit5/.

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The camera has the rangefinder, combined with                            2.3. Shutter
the view-finder 6 and connected with the help of                                           The shutter "O3III-18C" represents the exactlever system with the lens I O.
  The metering cell of Iskra-2 cameta is situated      and complex mechanism and requires the careful
between windows of rangefinder and viewfinder'          and attentive manipulation with it.                                                        Adjustments of shutter speeds use the ring 20,
                      2.2. Lens                    on which are engraved denominators of fractions                      .                                                          designating shutter speeds in seconds, for example:
                                                                                       15 etc.  Lens "lndustar-58" is coated four-element         2, 4, 15, etc., instead of | /2, I 14, I/                                                  gives        To adjust the shutter speed it is necessary toanastigmatic with a relative aperture 1:3.5, it
the sharp image and provides high quality of       turn ring 20 so that the number appropriate to the
snapshots both black-and-white, and color'               chosen shutter speed has stopped against the index
    Filter mount is 33XO.5 mmgroove.                 mark 21 on the shutter/lens casing.                                            To carry out any of long shutter speeds it is
                                                        necessary to establish a regulating ring on "B"'


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It is necessary to mean, that at rotation of a        shutter release cable when photographing from a
regulating ring 20 together with it rotates the        support.
aperture ring 7 7, having internal demountable          The presence of a self-release timer allows you to
connection with this ring.                               take photographs away from the camera, and also
   For installation the aperture it is necessary to        in a group or other such compositions. To operate
delay a ring 1l forward against the stop and to turn       the self-timer,  it is necessary to cock it by turning
                                                                                                                                                isso that division appropriate necessary aperture, has        lever 13 to establish it against the letter "A". It
stopped against an index 21.                             necessary to remember, that the cocking the self-
                                                                                                         cocked.   To make shooting, it is necessary at first to cock       timer possible only when the shutter is
the shutter by smooth rotation of the lever 79 on a       After pressing the shutter release button, the
course of an hour arrow against the stop.              mechanism of the self-timer will work after 9-15
   Release the shutter by smoothly pressing the       seconds and only after that will the shutter release.
button 4 against the stoP.                            The contact 14 for connection of flash units is
   Shutter release is possible only in the event that        functional for both single (lamp flash) and pulse
the camera is charged by a film and previously the         (electronic flash) type units. The contacts of the
                                                                                                               thefilm was winded on the next frame. The button 4       synchronizatton socket turn on the flash at
has a hole with a conical groove for connecting the      moment of complete opening of the shutter. The

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length of time from the moment of activating the        desirable to increase depth of sharpness or when
lamp up to its completed flash varies. For example,       the light exposure of the chosen shutter speed is
an electronic flash, as a rule, will flash faster than a      too great. The steps of the aperture scale are
single lamp flash. Therefore, electronic flash units       designed in such a manner that each step of the
can be applied with any shutter speed and with       aperture changes by a factor of two (doubles or
lever 13 switched at "lightning" or "X" symbol, while        reduces by one-half) the amount of light flow getting
the application of lamps is limited to longer shutter         to the film.
speeds of more than I/25 seconds and lever 13          With changes of the aperture of the lens, depth
switched at symbol "lamp" or'M".                       of sharpness changes accordingly. The depth of
                                                sharpness is increased with reduction of the
                  2.4. Aperture                         diameter of the aperture and with an increase of
                                                          distance from the shooting subject.
  The aperture is located in the shutter between          For definition of the depth of sharpness, there is
optical elements of the lens. The change of the      a scale 16. When using the scale, it is necessary to
diameter of the aperture of the lens is carried out by       understand that depth of sharpness is not absolute
movement of the ring 11.                      and identical sharpness of the image in  the
    It is necessary to use small apertures when it is        specified borders, and the field of depth are just a

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guide for which any object will seem rather sharp.       The light number represents a  uniting
As usual all distances are measured from the film       parameter, which at the certain brightness of object
plane                                                     of shooting and known sensitivity of a film united
  The shutter has a scale of light numbers (EV        all possible coordinated combinations of shutter
numbersl 12 put on a ring of aperture 11. The        speed/aperture, providing thus identical density of
index of a scale of light numbers (red point) is         negatives.
presented at a regulating ring 20.                      The light number can be determined with the
                                                                                          scale of light  The scale of light numbers is a line of      help of any light meter, having a
conditional numbers from 2 up to 18. The light       numbers. Iskra-2 camera has built-in light meter
number expresses amount of the light ener5/       which provides receiving EV numbers. To establish
                                                                                  necessary to delaynecessary for reception of a negative for normal        this number on the scale, it is
                                                                                 against the stop and todensity on a charged film. The change of light       aperture ring 1l forward
number on one step meets to double change of       turn so that necessary light number was combined
brightness of object or sensitivity of a film: the more       with a red point on a regulating ring 2O. After that
brightly object or is higher sensitivity of a film, the       you'11 receive necessary combinations shutter
above light number.                                    speed/aperture according with light conditions.
                                                       Rotating both rings 11 and 20, allows establish

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t3
  The table of  light numbers shows the            -   2.5. Light meter (for Iskra-2 ontyf
dependence between shutter speeds, apertures and
EV light numbers.                                     With the Iskra-2, the appropriate EV numbers
    It covers all light numbers from 3 up to 18,         for correct exposure can be determined through its
apertures from 4 up to 22 and shutter speeds nBr         built-in exposure meter.
and from 1 up to 1/500 sec.                                  T\rrn the film speed ring 3l so that the speed
   Shutter speeds are shared diagonally into two       value (|OCT or DIN) of the film in use aligns with
areas: one of them, especially important for the      index marker (see figure 3). The |OCT Soviet
photographer, covers of all automatic shutter       standard is almost the same as ISO/ASA. If the film
speeds, and other area covers large shutter speed       in use has an exposure index not given on the
above 1 sec., which requires manual shutter speeds        scale, the index can be set between two specified
possible with uBo.                                   numbers (e.g., ISO 1OO can be set between |OCT 65
                                              and 130).
                                                 Aim the camera towards the subject and turning
                                                     the calculator dial 32 overlap the indicator needle
                                     34 with calculator pointer 35. After it the EV
                                             number can be read at scale 32 against the index

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One of the reflecting sides of the rangefinder's prism        automatically at the moment of opening a back
has a special covering which cause the images of       cover of the camera.
the subject to appear multicolored. This facilitates         The film winding is made by rotation of the knob
their overlapping. On the ring 16 of the lens is     3 on the direction of the arrow available on the
engraved the scale of distances from the shooting       knob. Rotating the knob 3 against the stop defines
subject.                                                 borders of the following frame. The application of
   By rotation of the lens barrel I8 connected with         significant efforts after blocking the rotation can
the  rangefinder wedges, you can  achieve         result in breakage of the mechanism.
overlapping of the two images of the subject into         The back cover of the camera 22 is removable
one, thus focusing the lens on the shooting subject.         The lock of the back cover 26 uses the latch 24.
    If the distance up to the shooting subject is      By extracting this latch the lock on the back opens
known, focusing is possible without using the        the cover.
rangefinder. Just establish necessary meaning at         The back cover should be held by hand during
the scale of distances 13 against an index and take        opening to prevent it from dropping to the floor. For
a picture.                                                   closing the back cover, it is necessary to hook its
  The camera has the frame counter 2. An       bottom part to the edge of the case and to press to
                                                    (zeroD        the case until the lock closes.indication of the frame counter comes to

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              3. BASIC OPERATIONS                  empty take-up spool.
               3.1. Loading the film                           3. Open and cautiously remove the label, extend
                                              the backing paper and insert its end into the
   Loading and unloading the camera by a film can        lengthened slot of the take-up spool.
be made at ordinary, but not too bright light. It is           4. Pull the backing paper by the knob 3 to wind
necessary to protect the spool with film from strong       the film by making 1-1.5 revolutions, and while
direct light during loading and unloading of the          slightly holding the spool with the film, level the film
film.                                            between the spools so that it moves without
   The sequence of loading the film is as follows:           skewing between directing screws 29.
    1. Remove the back cover 22.                         5. Return the back cover and close it, as
   2. T\rrn on the head of center 23 against a       described above. The back cover should lock the
course of a hour arrow to delay the centre before       bottom of centres, thus to not allow exit them from
the stop. Then insert the central hole of the spool        cases of the camera.
on center 27. Combine the other end of the spool           6. Rotate the knob 3 against the stop. Thus in a
with center 25 and turn back head of center to the       window of the frame counter figure n1, appears.
original position. Have the spool with the film so            7. On the scale of the knob B, put the type of the
that the end of the backing paper is directed to the         film and sensitivity against the index by rotating the

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handle and disk 7. lt will help you to remember film
speed and type.


    Fig. 4.
   22 - Back cover
   23 - Head of the centre
   24 -  Latch
   25 -  Centre
   26 -  Locking framework of the back cover
   27 -  Centre
   28 -  Punched ledge of the knob
  29 -  Directing screw
   30 -  Centre

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                                                                                                        necessary,                3.2. PhotograPhlng                       of the lever 19 against the stop. If it is
                                                    cock the self-timer by lever 13 with establishing  it
                                                                                                     nAr.  To make shooting, it is necessary to make the        against the letter
following:                                               7. Looking in the window of the rangefinder-
    1. Open the cover of the case.                            viewfinder, focus the lens on the subject by rotating
                                                                                                               -18 to combine the two   2. Press the button 5 to open the front cover of        the barrel of the rangefinder
the camera.                                                multicolored images into one. Rotate the barrel /8
                                                                                         Simultaneously   3. Determine the exposition (or EV number,  if     by a finger of the left hand.
possible) with the tight meter or according with own       compose the picture.
          *on                  eye".                                           8. Release the shutter by smoothly pressing theexperience
   4. Establish the shutter speed by turning the        button 4 against the stoP.
regulatingring 20.                                        9. Rotate the film winding knob 3 against the
   5. Establish the aperture. Before turning the        stop, thus the number of the next unexposed frame
aperture ring  -l I  it is necessary to delay it forward       appears in the window of the frame counter.
against the stop, then install the aperture meaning         The knob 3 and the button 4 are connected with
against an index.                              a blocking mechanism, which protects against the
   6. Cock the shutter by a smooth clockwise turn

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possibility of making two exposures on the same       remove the empty spool from centers 24 and 25,
frame.                                            and to rearrange  it in the place of the pickup spool.
           3.3. Unloading of the camera                             4. CAMERA & LENS CARE TIPS
   After using all frames of the film, rotate the film         The camera Iskra is the complex optical device.
winding knob until the end of the paper substrate       The mechanism of the central shutter is a especially
will not be wound on the take-up spool.                    complex, and those features requires rather care.
  Now it is possible to open the back cover of the           Before beginning the practical application of the
camera. By turning the head of center 23 against a       camera, it is necessary to study it under the
course of a hour arrow to delay the centre, extract        instruction manual.
the center against the stop. Remove the film spool           Store the camera in the case intended for it, in a
and attach the end of the paper substrate to the roll       dry room. The shutter and the self-timer at storage
using the provided tape, or by other means, to       should be in the lowered position.
prevent unrolling of the film.                         Don't apply excessive efforts with  the
  The film can be stored in such a way for some       manipulation of it. Avoid strong shocks to the
time before developing. It  is recommended to       camera.

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            Protect the camera from dirt, moisture and dust.       or cotton wool slightly moistened with pure spirit
          The optical surfaces of the lens have a very thin         alcohol or ether (petroleum or sulfuric).
         layer (about O.lmm) of anti-reflective coating. This        Any residue left by the cleaning solvent can be
        coating gives the lenses a lilac or pale-blue tinge in       removed with a dry napkin.
          reflected light.                                              Moisture on the coated surfaces can leave stains
       The extremely thin coating can be easily      and when left for long periods (i.e, during storage),
        scratched with improper cleaning methods. To       can completely destroy the coating.
        preserve the coating, protect the lens from dirt,              If the camera is brought in from a colder
        dust, and oil, to reduce the necessity of cleaning or       environment, do not open the case and lens caps
         wiping.                                              immediately, to prevent condensation on  its
          The following cleaning method is recommended:         surfaces. Let it stabilize first with the ambient
         Remove dust with a soft, clean brush, or wipe        temperature.
       very lightly with a clean flannel napkin or cotton             If, through careless handling or any other
        wool without pressing the surface.                         reason, the coating does deteriorate, the lens will
           Oily smudges, finger prints, and perspiration            still perform better than an uncoated lens.
      marks can be removed by lightly wiping the               If the camera malfunctions, take it for qualified
        contaminated surfaces with a clean flannel napkin         service. Do not try to repair this camera at home!

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5. COMPLETE SE"f of the CAMERA                 The factory makes repair to the camera free of
                                                           charge, if the latent malfunction is found out within
  The complete set of the camera consists of:           one year from the date of its purchase, provided
    1. Camera with shutter and lens.                      that the device was not damaged outside of the
   2. Take-up spool.                                              factory.
   3. Shutter release cable.                        The faulty camera is directed to one of the
   4. Case with neck-strap and tripod nut.                guaranteed photoworkshops of the factory or is sent
    5. Removable neck-strap.                           by ensured parcel in the complete set with passport
                                                        (on which is written shop and date of sale) with a
                    6. WARRANTY                                 list of the noticed malfunctions to the address as
                                                    marked. Krasnogorsk, Moscow area, Krasnogorsk
   ITOTE: Ttris chapter is included as an example of old       Mechanical Factory attn: Checking Department.
Soviet warranty forms. Such warranties will not be
honoured by KMZ an5finore.


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