Zeiss Ikon NETTAR 2 1/4 x 1 3/4 User manual

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General
The Nettar 27fn"xl'f n" isa 1000/o..self-erecting,,  camerae that is, the
lens springs out at once into working position when the camera is
opened with one hand.
The camera is designed to take 16 pictures of 2Lfn,,xl'fn,, size. The
number of exposures can be read off in the red observation windows.
Note that the last exposure comes to within ,1, in. of the end of the
film, so that when developingo take care to fix the clip usually
employed right at the very end of the film, otherwise the last frame
may be spoilt. This fact should be pointed out to any dealer who
undertakes the development of the film. The whole afiair can be                  {lill
avoided, howevero by making use of only 15 pictureso that is, leaving
the last half section unexposed.
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Flatness of the film in tlie focal plane is ensured by a spring pressure
plate in the camera back.
The shutter is released by depressing a button on the body while
holding the camera in position for exposure.

I. Loading the camera with film
The Nettar takes roll films of type B 2 or BM 2 (wood or metal
core). It  is best to use the highly sensitive Zeiss Ikon Orthochromatic
or Panchromatic Film, with which excellent results are always ob-
tained, and which allows instantaneous exposures to be made even
when the light is poor. Although the film spools when unopened are
light-proof, the camera should always be loaded and unloaded, and
the spools stored away, in subdued light.
The various manipulations must be carried out in the following order:

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 l.  Pull out the catch (1) in the
    direction of the arrow and
    swing the hinged camera back
    outwards.




2. Place the full spool in the
   feed chamber while drawins
   the spring stud outwards. Thi
   tapered end of the paper leader
   must point towards the take-
  up spool chambero which con-
    tains an empty spool on which
   the exposed film is wound.


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3. Detach the gummed strip which
   holds the protecting paper in
   placeo and insert the end of
   the latter in the wide slit of
   the empty spool. In this po-
   sition the black side of the
   paper should face downwards.



4. By giving a few turns to the
   winding k"y (10), draw the
   paper taut. While doing this,
   see that the paper is wound
   on straight. Any crookedness
   of the paper band should be
   put right before proceeding
    further.
   Close the back of the camera
   and pull in the catch (1).
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6. Push aside the slide in  the
   camera back, and by turning
   the key (10) wind on the film
    untilo firsto a hand and then
   the figure I  appear in  the
   lower red observation window.
   The film is now in position for
   the first exposure.




   Important:
  The numbers on the film have to appear once in the lower window
   and a second time in the upper window of the camera back. The
   picture obtained will be vertical  if the camera is held in the normal
   crosswise position, and horizontal if the camera is held upright.

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7. Every time the film has been
   wound on to the next picture,
   the red windows should be
   closed by means of the slide.
   This is of the utmost import-
  ance when employing pan-
   chromatic film.


II. Taking out the film
After the 16 exposures have been made, take out the film from the
camera in the order indicated below.
1. Turn the film winding key (10) until the end of the protecting
   paper has been seen to pass the windows in the camera back.
2. Pull out the catch (1) in the direction of the arrow and open the
   camera back.
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3. Pull the end of the paper
    firmly with one hand and wind
   the paper tightly on the spool
  by turning the winding key.
  Now fasten the end by sticking
   downthe gummed paper sticker
   provided.



4. Draw the spring stud outwards
   and take out the spool. It  is
   advisable to protect it from
   the light by keeping it in the
   light-tight tin foil in which it
  was originally packed.

Take the empty spool out of
    the feed spool chamber and in-
    sert it into the take-up cham-
    ber. Both ends of the core of
   every spool are hollow. Press
   the end of the spool with the
   round hole against the spring
   stud, which should be drawn
   outwards for the purpose, and
   allow the end with the  slit
   :o: to fit into the projection
   of the winding key.
6.  Turn the winding key (10) un-
     til  it snaps with a click into
   the spool and turns the spool
    H'ith it.


The camera can now bc loaded
with a nerv  film.
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III. Making the Exposure                                                                                       ,'d'
Opening the eamera
1. Pressure on the knob (2) will
   cause the camera to  spring
   automatically into working po-
    sition. (The camera should be
    tilted in a slightly downward
    direction.)
Lens apertures
2. The required aperture is ob-
   tained by setting the lever (11)
   to the corresponding number
   on the scale. A higher number
   on the diaphragm ring denotes
  a smaller aperture, needs a
   longer exposure time and in-
   creases the depth of focus. For
    fuller particulars regarding the
   depth of focus, consult the table
  on page 30 or 31, which also
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serves to indicate thc distance and lens aperture to which the camera
   must be set so as to give the depth of focus for subjects at various
    distances, e. g. a group of peopleo the nearest of whom are ll  ft.
   and the furthest lB ft. from the camera. In this particular in-
    stance it will be seen from the table that when focussing on L2 ft.
   and using f lB, t}ne depth of focus extends from B'8" to l9'8" and   thus amply suffices for a group arranged between 11 ft. and lB ft.



The shutters
Derval shutter
The shutter allows speeds of Lf 25,
1/uo and t/roo th of a second and
long or short time exposures.





T2

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3. The required exposure time is
   obtained by setting the pointer
   (12) to one of the numbers 25,
   50 or 100. The numbers read
   in fractions of a second.
   For short time exposures the
   pointer (12) is to be brought
   to the letter B on the shutter.
   For long time exposures bring
   the pointer (12) to the letter T
   on the shutter.
4.  Set the shutter by means of
   lever (13).





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Telma shutter for lenses f 14.5
The Telma shutter allows speeds
                                  aof 1f25, 'luo, tlroo or lfrrurh ofsecond with or without delayed
action release and lons or short
time exposures.


3. The required exposure time is
   obtained by turning the milled
    ring (14). The red mark on the
   ring must be brought opposite
   to one of the numbers 25. 50"
   100 or 125. The numbers read
   in fractions.
   For short time exposures bring
   the red mark of the ring to the
   letter B on the shutter. For
   long time exposures bring the
   red mark opposite the letter T.
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4. Set the shutter by sliding the
   lever (13) along in its groove.





5. For taking instantaneous ex-
   posures with delayed action
   release, the manipulation is
   the same as described above,
  and in addition the delayed
   action release must be set by
   means of the lever (15).


t:)

Telma shutter for lenses f16.3
The Telma shutter allows speeds
of  rf 2s, tluo, tlroo and  lf t uth ofa second with or without delayed
action release, and long or short
time exposures.


3. The required exposure time
   is obtained by setting the
   pointer (12) to one of the
   numbers 25, 50, I00 or I25.
   The numbers read in fractions
   of a second.
   For short time exposures the
   pointer (12) is to be brought
   to the letter B, and
   for long time exposures the
   pointer (12) is to be brought
   to the letter T on the shutter.
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4. Set the shutter bv means of
   the lever (I3).





5. For taking instantaneous ex-
   posures with delayed action
   release the manipulation  is the
   same as described above, and
   in addition the delayed action
   release must be set by means
   of the lever (15).




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Klio shutter
The Klio shutter allows speeds
of I to ,lrrrrh of a second with
or without delayed action release,
and long or short time exposures.




3. The required exposure time is
   obtained by turning the milled
   ring (14) to one of the num-
   bers l, 2, 5. 10, 25, 50, 100
   or I75 of the shutter. The
   numbers read in fractions of
  a second.



1B

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4. The shutter is set by means
   of the lever (13).





5. For taking instantaneous ex-
   posures with delayed action
   release the manipulation is
   the same as described above,
  and in addition the delayed
   action release must be set by
   means of the lever (15).



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For short time exposures bring
the red mark of the milled ring
opposite the letter B.
For long time exposures, it is
necessary to use the Zeiss Ikon
special cable release which is
screwed into the thread (17) of
the shutter. It differs from the                     ,
ordinarycablereleasesinhaving             l
the movable plate (B) betw-een       :
the shoulder (C) and knob (A)
of the release. Set the shutter
to B and on pressing the knob (A), the shutter will remain- open
until the platelB) haJbeen pressed down with the thumb. In addition,
the speCi'el ca,ble'release     be used like any o_t!er cable release for
                                "rtr  exposures. For this purpose the platebrief'time and instantaneous
(B) is pressed on to the shoulder (C), whilst giving a slight turn to
itre rignt. The catch for long time exposures is thereby put out
of action.

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Setting the fistance
6. Focussing is to be done by
   turning the camera lens.





  A graduated scale of distances
   is engraved on the outside of
   the lens cell and a metal mark
   shows the distance on which
   the lens is focussed. For the
   depth of field at the various
   distance settingso see page 30
   or 31.



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Releasing the shutter
7. The shutter is released by pressure on the knob (5). If one, when
   opening the camera, one presses the shutter release knob by accident
     it can happen that the shutter itself will not be released. In this                                      I
   case one should close the camera asain so that the release knob
    finds its right position in relation tJ the shutter.
  When using the delayed action release, first the clockwork will be
   set in motion and after about l0 seconds the shutter is dischareed
   in the usual way.

Holding the camera when taking the picture
     It is impossible to give hard and fast rules for holding the camera.
  The essential point is that  it must be held firmly and without
   vibration in the hands.





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