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

www.butkus.us


        INSTRUCTIOI\S FOR USE
                             3, l^'-)r1a'    I\ETTAR



c26l7ar. ZEISS IKON AG. DRESDEN

www.butkus.us


General
The Nettar is a 100 0/0 'oself-erecting" camera, that is, the lens springs
out at once into working position when the camera is opened with
one hand.
Flatness of the film in the 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.
The film window in the camera back is sufficiently protected by a slide
so that it may be used also for panchromatic films.
   Before loading the camera for the first time all the manipulationsll
I I should be practised.


3

I. Loading the camera with fiIm
The Nettar takes roll films of type B 2. It  is best to use the highly
sensitive Zeiss Ikon Orthochromatic or Panchromatic Film, with which
excellent results are always obtained, and which allows instantaneous
exposures to be made even when the light is poor.
Zeiss Ikon Panchrom film is distinguished from Orthochrom film by the
improved rendering of colours that it gives. The Orthochrom film is only
sensitive to violet, blueo green, and yellow  - green, while Panchrom is
sensitive as well to yellow, orange? and red. All the colours are rendered
by Panchrom in approximately  their correct tones. In daylight the two
films have approximately the same sensitivity, but in artificial light the
panchromatic film should be usedo since it is more sensitive to this kind
of light and thus requires a shorter exposure in the camera.
Although the film spools when unopened are light-proof, the camera
should always be loaded and unloadedo and the spools stored away, in
subdued light.
The various manipulations must be carried out in the following order:
4

www.butkus.us
 l. Move the catch (t) in the direc-
   tion of the arrow and swing the
   hinged camera back outwards.





l.  Place the full spool in the feed
   chamber while drawing the spring
   stud outwards. The tapered end
   of the paper leader must point
   towards the take-up spool cham-
   ber, which contains an empty
   spool on which the exposed film
   is wound.

3. Detaeh the gummed strip which
   holds the protecting paper in
   place, and insert the end of the
    latter in the wide slit of the empty
   spool. In this position the black
   side of the paper should face
   downwards.





 i  By giving a few turns to the
   winding key (10), draw the paper         'While   taut.        doing this, see that
   the paper is wound on straight.
  Aoy crookedness of the paper
  band should be put right before
   proceeding further.
5.  Close the back of the camera; a
   click of the catch (l) will show
   that it is locked.

www.butkus.us
   Push aside the slide in the camera
   back, and by turning the key (10)
  wind on the film until, first, a
   hand and then the figure I appear
   in the red observation window.
  The film is now in position for
   the first exposure.



7. Every time the film has been
  wound on to the next picture,
   the red window should be closed
  by means of the slide. This is of
   the utmost importance when em-
   ploying panchromatic film.

II. Taking out the film
After the B 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 window in the camera back.
2. Move the catch (f) in the direction of the arrow and open the
   camera back.

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
   down the gummed paper sticker
   provided.

                                          www.butkus.us


B

www.butkus.us
   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.




5.  Take the empty spool out of the
   feed spool chamber and insert it
   into the take-up chamber. Both
   ends of the core of every spool are
   hollow. Press the end of the spool
   with the round hole aeainst the
   spring stud, which shoulJbe 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) until
     it snaps with a click into the spool
   and turns the spool with it.
The camera can now be loaded with
a new film.





 A gooil f,lm is essential for per-
 fect pictures: use Zeiss lkonf,lm!

l0

www.butkus.us
III. Making the Exposure
Opening the camera
 l.  Pressure on the knob (2) will cause
    the camera to spring automaticallr-
    into working position. (The camera
   should be tilted in a slightly down-
   ward direction.)


Lens apertures
2. The required aperture is obtained
   by setting the lever (11) to the
   corresponding number on the scale.
  A higher number onthe diaphragm
   ring denotes a smaller aperture,
   needs a longer exposure time and
   increases the depth of focus. For
    fl'lle.  particulars regarding the
   depth of focus, consult the table
  on page 32.
u

Setting the shutters
a) Derval
  The shutter allows speeds of rf 25,
    1/uo and t/rooth of a second and
   long or short time exposures.



3. The required exposure time is ob-
   tained by bringing the pointer (12)
   to one of the numbers 25, 50 or
    100. The numbers read in fractions
   of a second.




                                       www.butkus.us

www.butkus.us
The shutter must be set by means
of lever (14).





For short time exposures the pointer (f2) is to be brought to the
letter B on the shutter and the shutter to be set by lever (14).
For long time exposures bring the pointer (f2) to the letter T on
the shutter and set the mechanism by lever (14).

b) Tehna
The Telma shutter allows speeds of
tlru, tluo, 1/roo or tlrrrth of a second
with or without delayed action release
and long or short time exposures.




3. The required exposure time is ob-
   tained by turning the milled ring
   (15). 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.

www.butkus.us
.1. The shutter must be set by sliding
   the lever (18) along in its groove.





   For taking instantaneous exposu-
   res with delayed action release,
   the manipulation is the same as de-
   scribed above, and in addition the
   delayed action release must be set
  by means of the lever (17).

For short time exposures bring the red mark of the ring to the letter B
on the shutter and set the shutter by means of lever (lB).
For long time exposures bring the red mark opposite the letter T and                 I
set the shutter by means of lever (18).




c) Klio shutter
The Klio shutter allows speeds of I
to l/rroth of a second with or without
delayed action release, and long or
short time exposures.



t6

www.butkus.us
   The required exposure time is ob-
   tained by turning the milled ring
    (19) to one of the numbers l,  2,
   5o 10, 25, 50, 100 or 150 of the
    shutter. The numbers read in frac-
   tions of a second.




   The shutter is set by means of the
   lever (20).





T7

5. For taking instantaneous expo-
   sures 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 (21).




For short time exposures bring the red mark of the milled ring opposite
the letter B and set the shutter by means of the lever (20).
For long time exposures bring the red mark of the milled ring opposite
the letter T and set the shutter by means of the lever (20).
When the letter T is not engraved,  it is necessary to use the Zeiss Ikon
special cable release for long time exposures.


IB

www.butkus.us
 The release is screwed into the thread
 (13) ofthe shutter. It differs from the
 ordinary cable releases in having the
 movable plate (B) between the shoul-
 der (C) and knob (A) of the release.
 Set the shutter to B and wind it. On
pressing the knob (A), the shutter will
remain open until the plate (B) has
been pressed down with the thumb.
In additiono the special cable release
can be used like any other cable re-
lease for brief time and instantaneous
exposures. For this purpose the
plate (B) is pressed on to thC shoulder
(C), whilst giving a slight turn to the
right. The catch for long time ex-
posures is thereby put out of action.
d) Compur
The shutter allows speeds of l-l/rroth
of a second, with or without deiived
action release and lonq or short time
                            exposures.
l9

The required exposure time is obtained
by turning the milled ring (19). The
numbers on the ring read in fractions
of a second and must be brought oppo-
site the white index mark.




Set the shutter by sliding the lever
(20) along in its groove.

www.butkus.us
When setting the shutter, and this applies particularly to the speed of
 Lf   2ss sec,, a rather considerable resistance has to be overcome. To avoid
overstraining the shutter mechanism, a counter pressure must be exer-
cised when setting the shutter.
Note: Once the shutter has been wound it is not possible to alter the
!pe9d from the lower group to Llzso second but the speeds in the groupl-100 may be altered before or ifter  setting the shutter.


For taking instantaneous exposures
with delayed action release, the mani-
pulation is the same as described.
Then push button (21) aside, and
move the lever (20) a little farther
on, till  it is arrested a second time.
The delayed action can be set only
for the speeds of l-1/rooth of a secot d.

2l