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

13. Struts  holding  ca-
         mera front
        L4. Exposure scale
       15. Indicator
             for distance scale
       76. Shutter tension lever
         I7. Catch  holding  ca-
         mera back  in place
             I B. Slide for covering red
           observation window
       19. Red observation                          19         window  in  camera
         back
       20. Eyepiece of distance
          meter -  view  finder   IB
          combination
       21. Diaphragm scale
           (prg"   I B)
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Introduction

The  Super  Ikonta   2'la*ZLf n"   is  a  roll-film  camera which  difiers  from
 other  types  of  instruments,    first  in the distance meter,  which  is coupled
 to  the  lens  focussing  and  forms  an  integral  part  of the  constructiono
 and  also  in  the  entirely  new  design  of  the  front   carrying   the  lens.

The  Compur  Rapid   Shutter   is released,  not  in  the  customary  manner
by pressing  a lever  at  the  camera  front,  but  by depressing a button  on
the body  while  holding  the camera  in  position  for  exposure.

The  camera  is arranged  to  take   ll  pictures   2'ln-2rfn"    in  size. The  film
wind   is  locked  from  picture  to  picture.  The number  of exposures made
can be read  off on a film  countins   disc.

The  special  construction   of the camera  renders  unintentional   double  ex-
posures impossible,  since the  shutter  can be released only when  the  film
has been wound  on to  the next  section.
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The  Super Ikonta   is a 1000/o .oself-erecting"  camera  -   that   is, the  lens
springs  out  at once into   its working   position when  the camera  is opened
with  one  hand.

Focussing  on  objects   at  short  distances  is done by turning   the  setting
disc of the  distance  meter   -   view  finder  combination.   This  adjustment
is communicated  to the lens. The combination   is constructed  on an entirely
new  principle,  and   is  proof  against  external  conditions,  vibration,   etc.
Flatness  of  the   film  in  the  focal  plane  is ensured by  a spring  pressure
plate  in  the camera  back.

Prineiple  of the automatic  shutter  locking  device
 in conjunction  with  the fiIm wind

 The super rkonta   2rla*2Lf n"  isprovided  with  an arrangement  rvherebv the
 film, when wound,  stops automatically  when  in position  for  the  folloing
 exposure.  This  therefore  dispenses with  the necessity  of watching  the red
 observation  window  or counter  disc.
The  shutter   is  at  the same time  coupled  to  the  film winding  mechanism
in  such a manner  that  the  release knob  cannot  be actuated  unless  the
film  has  been moved  on to  the  next  picture.   This  obviates  the  danger
of making  double  exposures  and  also  of  winding  on  the   film,  without
exposing   it.

The  particular   design  of  this  camera  makes   it  necessary  to pay  close
attention   to  several  points  when  loading  the  film.
But    it  is  advisable   at  first  to m.ake oneself  familiar    with   the  followins
manipulations:
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l.  With  the  film  locking  device  out  of action
    the  film  winding  key  turns  independently   of  the  counter  d'isc and
    shutter  and can be rotated  at  will.  The  shutter  can be set,  but  not
    released, when  the  film  locking  device  is disengaged,  and   it  is only
     in  this  position  that  the  film  should  be loaded  in  the  camera.  The
   procedure   to  be followed  when  inserting  the  film  is the same as for
   any  ordinary   rollfilm  camera  (see page 9 et  seq.).

2.  With  the  film  locking  device  in  action
    the  film  winding  key can only be turned  from  one pieture  to the  next,
   provided   that  the  shutter  has been previously   set and  released. The
   camera may  not  be loaded  with  film  in  this  position.  When  releasing
    the  shutter   for  the  eleventh   picture   the  locking   device  becomes
   disengaged  automatically.

3.  Setting  the  automatic   film  locking  device
   While  pressing down  the  counter  disc turn    it  in  the  direction   of the
   arrow  up  to  No.  1,, when  a strong  resistance  will be felt.  The counter
    disc should  then be released.


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Putting  the automatic   film  locking  device out  of action
Turn   the  film  winding  key  to  its  limit   stop.  Then  set the  shutter,
and when  releasing   it,  see that  the  release knob  is held  down  hard.
rt   will  then  be  possible  to  move  the  counter   disc, when  pressed
down, beyond the  No.ll,   thereby disengaging the locking mechanism.





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f. Loading  the Camera with  Film

Roll   films  of  type  82   are usedo which   are  arranged   to  give 11 ex-
posures 2'ln*2'1n".    Although   the  film  spools when unopened  are  light-
proof,  the  camera  should  always  be  loaded  and  unloadedo  and  the
spools stored  awflf,   in subdued  light.





The   film  should  be  inserteil   in  the camera  only  when  the  film  locking
mechanism   is disengaged.

A  sign  that  this  is so is when  the  winding  key  can be rotated  without
meeting any stop.  (See page 7, section  1).   If  the locking  device  is set,
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2. Place the  full spool in the lower
    or feed chamber  while  drawing
    the  spring  stud outwards.  The
    tapered end of the paper leader
   must  point  towards  the upper
    or take-up spool chamber, which
   contains  an  empty  spool  (the
   take-up  spool) on which  the ex-
   posed film  is wound.


3. Detach  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.




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4.  By  giving  a few  turns   to  the
   winding  key  1, in  the  direction
    of the  arrow?  draw  the  paper
    taut.  fn  doing  this, see that  the
   paper is wound  on straight.  Aty
   crookedness  of  the paper band
   must  be put   right   before  pro-
   ceeding  further.




   One  half  of the  outer  ring  on
    the  film winding  k"y   I  is hinged
   and when  lifted  in  the manner
   shown  in  the  illustration  oppo-
    site,  affords  a  convenient   grip
    for  winding  on  the  film.

5.  Close the back of the camera and
   lock by means of the catch 17.

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6.  Turn   the  winding  key    I  untilo
     first, a hand and then the figure  I
   appear  in  the  red  observation
   window  19.





7.  Close the window  19 by means
    of the  slide  lB.
   (Important  when using panchro-
   matic  film.)





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B. By  pressing down  the  counter
    disc, turn    it  in  the  direction   of
    the arrow to the number   l, when
    a strong  resistance  will  be  felt.
   Then  release the  counter  disc.
   The  camera  is now  ready  for                                                           t
    the  first  exposure and the auto-
    matic  locking  device is brought
    into  action  at  the same time.
   The  film  wind   is arrested  from
    picture  to picture by a mechanic-
     al  arrangement   in  the  interior
    of the camera. After  the  llth  exposure the mechanism  is automatically
   disengaged, thus  allowing  the end of the  film  with   its paper  trailer  to
   be drawn  through.  The counter  disc only serves to show the number  of
   exposures made. Take care not  to turn  or prell  down  the counter  disc
    in any way once the camera  is loaded with  film,  as otherwise   it may
   do some harm  to the  film conveying  mechanism.

                                                                                                                                                                        fr.


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II.  Taking  out the  film

The  film  should  only  be taken  out  of the camora when  the Iocking  device
is  not  working.   This   is always  the  case when  the  entire   film  has been
exposedo for   after  the  eleventh  exposure  the  locking  mechanism   is put
out  of  action  automatically.
Should   it be found  necessary for some reasorr or other  to remove  the  film
before the  full number  of exposures has been mad.e, turn  the  film winding
key to the next  stop and set the  shutter. When  releasing the shutter  keep
the release knob  pressed down, and  at the same time  depress the counter
disc with  the other  hand,  turning    it  in the  direction  of the arrow beyond-                                                                                    - *

l.  As soon as the eleventh  exposure has been made  (the number  1l  will
   then be opposite  the indicating  mark  on the counter  disc), wind  off the
   whole length  of the  film.  By looking  through  the red window   it  will be
   seen when  the paper  is completely  wound  on  to  the  take-up   spool.

2.  Pull  out  the  catch  l7  and open the camera  back.



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3. Fasten  the end  of the exposed
   spool by sticking down the paper
    with the gummed  strip provided.
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    Pull  back  the  spring  stud  and
    take  out  the  spool.





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5 . Take the empty spool out of the
            lower or feed spool chamber and
             insert  it  into  the upper or take-
           up  one. Both  ends of the core
              of every spool are hollow.  Press
            the end  of  the  spool with  theII           round  hole  against  the  spring
             stud,  which  should  be  drawn
           outwards  for  the  purpose, and
            allow the end with  the  slot :o:
              to  fit into  the projections  of the
           winding  k"y.

        6. Turn  the winding  k"y    I  until  rit
           snaps with  a click into  the spool
          and turns  the  spool with   it.





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III.  Making  the Exposure
l.  Pressure  on  the  knob  6  will
   cause the camera to spring auto-
    matically  into  working  position
    (the camera should be  tilted  in
   a slightly  downward   direction).

Lens Apertures
2. The  required  aperture   of  the
   lens is obtained by setting the in-
    dicating mark  on the diaphragm
    ring  10  to  the  corresponding
   number on the scale 21. A higher
   number  on the  diaphragm   ring
   denotes a smaller aperture? needs
      longer  exposur_e timeo  and   3   increases the  depth  of focus.
   The depth of focus for the various
   stops can be read from  the scale
   on the front  plate of the shutter.
   For   fuller   particularso   consult
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the  table  on  page  31,  which
    serves  to  indicate  the  distance
   and lens aperture  to which  the
   camera  must  be  set  so as  to
    give  the depth  of focus for sub-
    jects  at various  distances,  e. g.
   a group  of people,  the  nearest
    of whom  are  10  ft.  and  the
    furthest  32 ft. from  the camera.
    In  this  particular  case it  will be
   seen from  the  table  that  when
   focussing on 15 ft. and using//11
    the depth  of focus extends from   9t2't  to  40' and  thus  amply  suffices
    for  a group  arranged  between  10 ft.  and 32  ft.

The Compur Rapid  Shutter.   The  shutter  can only  function:
    a)   if  the  shutter  is set ready  for  exposure?
    b)   if  the  film  locking  device  is set,
    c)   if  the  film  has been wound  on  to  the  next  exposure.
    Failing   the  fulfilment    of  any  one  of  these  conditions?  the  shutter
   cannot  be  released.  In  such  cases it  is possible  to  set the  shutter,
    but  not  to release it.
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3. Turn  the  ring  L4 until  the  re-
    quired speed is brought oPPosite
    tne mark  15. The numbers  on
    the  ring-  read  in  fractions  of a
   second.  With   this  shutter    it  is
                   ooinstantaneous'o    possible to make
   exposures from    I  to  l/noo see.




4.  Set  the  shutter bY  sliding  the
    lever 16 along in  its groove.

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When  setting  the shutter  for an           :
   instantaneous  exposure? a con-
    siderable  resistance  has  to  be            ',                                                                                   ',   overcome; this resistance is parti-
    cularly   pronounced   with   the
   speed of 1/*oosec. To avoid over-
    straining  the shutter mechanism             :
    or  possibility   of damaging  the
    front  carrying  the lens a counter
   pressure must be exercised when            :
    setting  the  shutter.
   To use the delayed  action release for  ooself-portraiture",  set the  shutter
    to  the speed required  and push back  the  knob   (9), whereupon  the
    lever (16) can be advanced to a second limit  stop. The delayed  action
   release cannot  be used  in  conjunction  with  time  exposures or with
    the  top speed of t/noo.h second.
   For  short  time  exposures  bring  the  letter  B on the  shutter  opposite
    the  red mark.  The  shutter,  without  having   to be seto is opened by
   a pressure on the  release knob  (2) and closed again as soon  as  this
   pressure  ceases. (The  tension  lever 16  cannot  be moved when  the
    ring 14 is set to the letter  B).  For long time  exposures use the  special
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',,    wire release which  is screwed into
    the bush of the release knob.   It             i
     differs from  the customary  type
    of wire releases by  its  disc (B),         ::
   which moves between the button           :                         'W.hen
    (A) and the  tub"  (C).         the          .ll
    shutter,  set to B,  is released,  it         i,,,',
     will  remain  open  until  the  disc
    (B)   is  pressed down  with  the
   ihumb.  th"   special wire release         :                                                                             i:   can also be used for  short time
   as well  as instantaneous  expo-
    sures. For  this  purpose  the  disc (B)  should be pressed down on  to
    the  tube  (C)  and  turned   slightly  to  the  right,  thereby  putting  the
    locking  device out  of use.

Releasing  the  shutter

5. W-hen releasing the  shutter  by means  of the knob  2,  see to    it  that
    the  latter   is  pressed right  down  until  the  shutter  operation  is com-
    pleted.    If  the release knob  is not  held down  for  the required  length
    of time,   it may become blocked.   fn  this  eventuality  the  knob   will
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not  function   again  until  the  film  has been wound  or,  thus  causing
   one picture  frame  to  remain  unexposed.  When  using  the  delayed
    action  release,  the  clockwork   is  first  set  in  motion  and  after  about
   12 seconds the  shutter  makes the exposure  in  the  usual way.

Holding   the Camera when  Taking   the  Pieture
6.   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 hand.  A  favourite  method   is  to  let  the camera  rest  firmly   in
    the palm  of the  right  hando with
    the   left  hand  surrounding   the
   camera body.  The middle  finger
    of the  left hand can thus operate
   the disc B of the distance metero
    while  the  middle   finger  of  the
    right  hand can press the  release
   knob.  Take  care, however,  that
   the  fingers do  not  obstruct  the
   windows   of  the  distance  meter
    or view  finder.