Ideal Cameras User manual

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Bef  ore   u sing    the   camera
   read the following instructions carefully, to  get
   thoroughly acquainted with its various movemenfs

                                                 -

To open the camera front
press on button (a). The front then'springs out
and should be drawn down until struts (ss) catch
it with a "click".

Focusittg
          a) by means of the scale
The camera front, bearing lens and shutter is
drawn forward by pressing the two knobs (SS)
together. Pul! the f:'cnt cut on the runners unti!
it locks.
The lens is now in position for photographing
objects at "Infinity" marked oo. Focusing for
nearer objects is accomplished by turning the
focusin g screw (z).
This screw is locked and before it can be turned,
must be released by pulling out the lock (y). fnis
may also be done by pushing the focusing scale
itself toward the track on which the standard
slides. The focusing screw is turned until the
pointer over scale (m) inaicates the distance from

the object to the camera. Secure the front in its
     position by pushing in the lock (y.).
           b) by means of the ground. glass
    The focusing screen is fitted with a collapsible
    hood which opens by pressing down the spring
      latch.
    Open the shutter as for Time. Look at the pic-
     ture on the ground glass and move the standard
     forward or backward by means of knob (z) until
ilq  the picture is absolutely sharp.'s
 \  The rising front
       i" controlled by knob Or). Wfren*turning this, the   ',-v lens board moves up or down.
     This adj ustment is u sed for eliminatin g foregroun d,
    or to. include more of a very high object, such as
    a building or a tree, without tilting the camera.

   The cross front
    This is governed by the action of knob (p.).                     I
                                                                                                                                                                                             fl        It acts in place of the rising front when the camera
      is being used for horizontal views.
       It is important that the lens should be in normal
     position, both vertically and horizontally, when
     closing the camera. There are white dots on the
     front which coincide when the lens is in normal
     position.

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 In the camera No. 111 there is no screw, the front
moving sideways by merely exerting pressure.
 This lateral movement of the front acts in place
of the rising front, when the camera is used
 for horizontal views.
The swing back (see Fig. I and II).                     \t'
 Pressure on both struts (ss) will loosen the bottom
part of the camera, which may then be fixed either
above or below its horizontal position by means
of the overlapping catch (n) of these struts.
This arrangement may become very useful when
abnormally high or low objects are to be photo-
graphed. The camera body must always remain
perpendicular. (The Ideal No. 111 has no swing                                                                               f.back).

                                                                                   I
The finder
is the well known "brilliant" or reflecting type
and needs no special explanation.

                 The         Spacg
                       brilliant         uSect
                   view
                      finder            .r"JrliEurviews

A level, attached to it, serves to control the correct
position of the camera.

AII Ideal cameras, except No. 385, are fitted besides
    with the well known Iconometer direct view finder
    with sight.
   The use of film packs
   The film is not exactly in the same plane as the
     plate and in order to correct this slight difference
    and to ensure perfectly sharp pictures, to be ob-
     tained when using a film pack, the focusing scale
    is movable; it must show at one end the word
    "Film" and, when using plates, the letters "Pl"
   must be visible at the other as shown by the
     illustration on page 13.
   The use of the single combination lens
    Symmetrical lenses admit of the rear or front
     half being used alone with approximatively twice
    the focal length of the complete lens.
    This results in an image of any particular object
    being obtained about twice as large as that given
   by the double lens. If the single lens is twice the
     focal length of the doublet, it will have only one     *I
    fourth the speed at the same actual lens opening.                                       I
   . For instance if this latter is F/8 for the doublet,                      I     becomes f'/16 for the single lens.   i   it I  Unscrew the front lens and draw the standard to                     .i".lfi1
                                                                                                                                                                                                                                                                                                                                                                                                                  ;!   the end of the bottom board.
   Then use the button (z) to bring out the double
    extension until the pointer on the side opposite
    the scale stands on the mark oo for infinity.
    '' l0
\t   ,4

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     This means that the rear lens is now in focus
       for infinity.
         If nearer objects are to be focussed, the extension
     must be turned further out and the picture ex-.
      amined on the ground glass.
     The same manipulation can in most cases be done
      with the front lens too, but then the use of the
      ground glass is necessary for all distances.
    When using single combinations, a smaller dia-
     phragm is usually necessary, to obtain full co-
      vering and sharpness,
      For the use of the double extension with Zeiss
       Tessars, the Zeiss "Distar" lenses are recommen-
      ded, by means of which very long foci may be
       obtained with advantage.

     Using different lenses (Camera 111 excepted)
     The shutter, bearing the lens, ffiaY be taken off
     by means of lever (x), which must be pushed to
      the right toward the finder. A slight turn of the
                                release it.I      shutter to the right will
    When replacing it, a slight turn to the left will
I       fix it, lever (x) will then retain it automatically.
 I
II     Hofizontal exposures
     These are made by placing the camera sideways       .-on         the tripod, using the extra bush provided to
       this effect.

The exposure
A pressure on button (t<) witt release the focusing
frame. Take itoffandput the slide in itsplace,where
 it must be secured automatically by button (k).
Regulate shutter an diaphragm according to
circumstances and then draw out the cover of
the slide
Expose by a pressure on the release.

                                                                           4To close the Camera
Be careful that the lens board and standard are
in their proper position marked by white dots.
Turn the double extension back as far as it will
go, then secure button (z) by lock (y). Grasp both
knobs @d between fore finger and thumb of the
right hand, exerting at the same time an inward
pressure on the scale with the middle finger and
then push the front into the camera, until it catches.
Release the base board by a pressure on struts (s)
and fold it against the camera.
If the camera will not close readily, do not force
it, but look again and make sure that all parts
are in their proper position.
When closing the camera, the cable release must
not be placed behind the lens bearer, as it would
damage the bellows.



t2

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   Please note!





      Sharp focusing
   when using filmpacks



    Position when using filmpack



     Position when using p/afes


When using large aperture lenses a very
slight  d.ifference in focus  will  be found
     between plates and filmpacks
To  obviate   this   ilifference  the  special
scale plate  illustrated  above, is  fitted  to
                   tb.e caa.era

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        Compur shutter
                             gives Time, Bulb and various
                             instantaneous exPosures.
                    For instantaneous  ''
                          .  expo$rres
                                   I     fit"t of atr iPt ttre diaPlit^agm
                                           (f)  to, the stoP (aPerture)                +   scale                              required, then set the dial (f)
                          with the lettei I tMt. against
                                 the pointer, revolve the di'al (R)
                                                     'the arrow,                              in the direction of
                           (from right to left), (nevet in
                         the oPposife ditection or it
                                 will be damaged), till the in-
tended speed is opposite the indicator, then depress the                                                         be lever (ii and the ihutter is set. The exposure may
srade by depressing the lever (d) or by using the cable
rerEAS€ which is inserted at (o)'
Long time exPosures
Set the dial (t)  at T (Z). oPen by pressure on tever (d) or
preferably bY cable release, a second pressure closes the
shutter.
Short time (Bulb) exposures
set the dial (f) at B and open the shutter by pressure onrelease. Immediately this piessur" ceases' the shutter will
 close.
Note. The shutter is automatic for Time and Bulb ex-
posures; lever (i) becomes then locked and no attemPt must
be made to use it.
 The Jens apertures, or stops' are altered by moving- the                                                      be small lever if),  the diaphragm scale and indicator will
 found at the top of ttt" itr.ttier, behind the dial (R).
                                                             15

Diaphot
                lVo. l32I 15





 A novel and unique Actinometer
     For  novice    or  exPert
  Light and smalt. For vest pocket or chate-
  laine. Perfectly simple. Accurate and reli-
   able under all conditions. A novel and use-
   ful little instrument giving accurate exposures
  for any subject. Simply view the subject
  through the eye piece and read the correct
  exposure against the <iiapirragm (f/) values


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