Polaroid MP-3 User manual

Howto assembleand use
   the PolaroidMP-3
   Multi-purposeIndustrialView LandGamera

t





     PolaroidMP-3 System

Introduction
The Polaroid MP-3 Industrial View Land
Camera is a highly versatile photographic
unit.  It can complete most jobs in seconds,
without a darkroom.
    It  is possible to change instantly from
one film format or type to another, without
any film wastage. The sliding film carriage,
which  is described in  detail  later,  is de-
signed for this purpose. The interchange-
able lenses make possible a wide range of
reproduction ratios.
  Used  with  the  appropriate  Polaroid
Land film, the MP-3 can be used for the
production of continuous tone as well as
high  contrast  black  and  white  prints.
Slides for projection can also be made, in
either tone or  line. Type 55 P/N  film
provides a high quality fine grain negative
in the 4 x 5 in. format, as well as a print.
Quality  color prints  are ready  just one
minute  after  exposure, using  Polacolor
film  in  either the  \tZ x 4Yt  in. or the
4 x 5  in.  formats. Wet  process films  of
various formats can also be used, with
special adapter film backs.
  The MP-3  is a precision instrument  of
professional standard.  It  is at the same
time so easy to operate that  it  is rapidly
mastered, even by  the completely inex-
perienced.
  Among  the wide  variety  of  jobs the
eamera is designedto handle are:
Macrophotography   Copying
Photomicrography     Slide making
Wall chart copying    X-ray copying
      Small object photography      Gross specimen photography         G
       Halftone screening
  The MP-3  is used by industrial plants
and  by  advertising  agencies, by  hos-
pitals and by government departments.
 It has beeome an everyday aid in research
laboratories, engineering departments,  li-
braries, art departments and law enforce-                          qment  offices. Wherever photographic re-
productions  of  virtually  any  kind  are
required regularly and rapidly,  to a high
 quality, the MP-3 camera fills the need in
the most economical and easy way.


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Assembly
1, Attach camera column to baseboard:
Fasten it with the three bolts provided.
This is done most easily with the column
in a horizontal position, as shown. The
metal baseplate goes between the column
and the baseboard,and the washersgo on
the bottom surface of the baseboard.The
bolts should be tightened with a %  in.
nut driver.


lmportant:Do not loosenthe lockingknob
(A) of the cam era while the camera col-
umn is not in its vertical position. The
camera head  is counterweighted by  a
strong spring. This would cause the un-
locked camera head to shoot up the col-
umn while it is lying flat.


2. Add light trames: Insert the ends of
the aluminum light frames into the holes
in the sides of the baseboard.The frames
must be placed in such a way that the cord
protruding from each is in the arm of the
frame which is nearestthe camera column.
Securethe frames with the knurled screws,
as shown. Plug the cords into the sockets
on both sides of the camera column.
3. Insert lam ps : Screw the lamps into
their four socketson the light frames.
  The lamp  positions are permanently
fixed in such a way as to provide even and
reflection-free illumination. For the types
of lamps provided for each of the MP-3
models, see THE nnp-3xL MODELAND THE
up-3 sTANDARDMoDEL,oh page 7. Burnt
out lamps should be replaced with lamps
of the sametype and wattage rating.
Warning :  lf other tha n U.S. lam ps are
used, special lamp  socket adapters
should be used.
  ln those areas of the world where the
standard voltage is other than 110-120
volts (for exam ple, 22O-24Ovolts), lam ps
of the appropriatevoltage rating must be
used.

4. Put lens on camera: Attach the lens
by fastening the lens board to the front
bellows plate  with  the  sliding  latches
 (A). The lens settings should face toward
you. For the selection of the right lens for
each specific application and reproduction
scale, see the separate instruction booklet,
HOW TO USE THE LENSES AND LENS AC-
cESSoRTES oF THE poLARorD  up-3  LAND
CAMERA.



5. Gonnect cable releases: Connect the
cable releaseleading from the sliding car-
riage of the camerato the pre-view opening
socket at  (A), oh the right  side of the
shutter  mount.  Connect  the  separate
cable releaseprovided with the shutter to
the socket at the left rear of the shutter
mount, at (B). The shutter is self-cocking,
and need not be manually tensioned after
eaeh exposure.



6. Attach reflex viewer: Snap the reflex
viewer (A)  into  position on top  of the
ground glass focusing panel. The separate
viewing hood (B) snaps onto the viewer
housing in the position shown. The hood
tilts   vertically   for  convenient  bright-
image viewing at any cameraheight.



lnch scale on camera column: There is a
scale, calibrated in inches, on the camera
column. The height of the film plane above
the baseboard is shown by the red indi-
cator (A) on the upper right side of the
elevation bracket. If  it is also necessaryto
know the lens to film distanc€, this can
be determined with  suffieient accuraeyfor most purposes by measuring the lens                 J
to baseboard distanc€, and subtracting
this from  the  height indicated on the
column.
    If the subject is raised above the base-
board, or has thickness of  its own, this
must be compensatedfor.
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The MP-3XL Modeland the         use the exposure table prepared for the
     MP-3StandardModel             MP-3 Standard Model.
                                       MP-3 Standard Model
       The basic difference between the MP-3    Column height: 39 in.
       models is one of size. The XL has a taller   Baseboard area, overall: 19  in. x24  in.
       column, a larger baseboard with a larger    Lighting: Four 75 watt 120 volt reflector
          field of even illumination, and more power-    floods, run off the 120 volt AC supply.
          ful lighting than the Standard. The eamera    When a higher light output  is required,o
       head on both models is identical.             the lamps can be replaced by four 150 watt
                                            120 volt reflector floods.
      MP-3 Model 245XL                      The 150 watt lamps are recommended
      Column height: 56 in.                           for color photography.
       Baseboardarea, overall: 24 in. x 28 in.        The  exposure recommendations  pro-
        Lighting: Four 300 watt 100 volt reflector    vided with the Polaroid Instant Halftone
        floods (General Electric),  run  off  the   System are designed for  use with  the
       120 volt AC supply.                     150 watt reflector floods.
        The  full name of the eamera with  the
       above lighting  is MP-3 Model 245 XL.    Note to users outside North America:
        This camera also has a HIGH-Low switch.     In areas of the world where the standard
        This is set to HIGHfor picture taking, and    voltage is other than 110-120 volts  (for
         to r,ow at other times. This increases the    example, 220-240 volts),  lamps  of  the
           life  of the lamps, and also keeps to a    appropriate voltage rating must be used.
      minimum  the heat generated by  them.
        The Model 245 XL   is not  available
        outside the IJnited States.

      MP-3 Model 225XL
       The older version of the XL camera, the
      MP-3 Model 225 XL, uses four 150 watt
       120 volt reflectorfloods,run off the 120 volt
     AC supply. This model does not have the
       highJow  switch. The dimensions of this
       camera are identical  with  those of the
       245 XL.  AII XL cameras having a serial
      number lower than P413706 (see name-
         plate on rear of camera column) are of the
        older type.
        The  exposure recommendations  pro-
        vided with the Polaroid Instant Halftone
       System  (see separate instructions  pro-
        vided for that  system), are designed for
       use with the lighting of the Model245 XL.
         In the United States the Model 225 XL
       can easily be converted to  lhe 245 XL.
        Contact your Polaroid Service Center for
         details.
        To use the Instant Halftone System with
        the Model 225 XL  in other countries, the
         following conversion should be made. The
       baseboard and lamp arms should be ex-
       changed for the baseboard and lamp arms
         of the MP-3 Standard Model. Four 150
        watt lamps should be used. You can then

les.s shutter  have  built   in         flashVersatility                                                                        'rX"
                                             synchronization.
Some of the features that make the MP-3     The pieture below also shows how the
a truly  versatile technical and industrial    camera angle can be varied to any position
cameraare shown below.                  betweenvertical and horizontal.
  The four lensesshown (A, B, C and D),      Perhaps the one feature of the camera
having focal Iengths of.5,4 and 3 inchesand    which adds most to  its versatility  is the
35 mm respectively, enable the reproduc-    sliding  film  carriage. This  is  discussed                                Jtion scale to be varied continuously from     fully on pages10 and 11.
extreme reduction to a 10:1 magnification.      In addition to the three Polaroid Land
  For magnificationsof about 7:1 to 10:1,    film holders shown, the camera can also
the bellows extension accessory (E) must    take a wide selection of film holders and
be usedwith the 35 mm lens.               magazines for  conventional wet-process
  The Iight baffie tube (F), used with the     films, thus enabling the MP-3 to be used
special lenslessshutter (G), is required for    with any film from 35 mm up to 4 x 5 in.
photomicrography.                       The methods of attaching filters to the
  The 5, 4 and 3 inch lensesand the lens-   MP-3 Ienses are discussedon page 30.





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Whereto placethe camera
For good and consistent results, select the
location for your MP-3 with care:

1. Avoid variable outside light sources:
Keep the camera in a place where it  will
not be affected by illumination which may
sometimes be  brighter  and  sometimes
weaker, such as window light. The more
you ean eliminate variable light sourees,
the easierit will be for you to standardize
your exposuretechniques.

2. Avoid  ref lections:  Take  particular
eare not to have any lights or bright re-
flective objects in the area immediately
above  the  eamera. These could  cast
reflections straight into your eamera lens
from  a glossy original. Such reflections
could have a  disastrous effect on  the
quality  of  your  pietures.  If  neeessLtV,
erect a protective shield above the camera.
  Also avoid placing the eamera right
alongside a light colored wall. This could
lead to uneven illumination  of a large
original on the baseboard.

Cameratilt

The eamera head can be tilted through an
angle of 90o (seep. 8). Any original that is
too large for the eamera baseboard can be
fastened to a wall, bulletin board or black-
board, and photographed there with the
eamerahead in a horizontal position.
  Push the eamera tilt  locking knob (A)
in a counterclockwisedirection to free the
eamera head. Rotate the head as far as it
will go. The lens will point to the right.
Then turn  the locking knob firmly  in a
clockwisedirection to lock the eamerahead
in place.
  Remove the light frame on the right side
of the baseboard.The original on the wall
will have to be lit separately. Do not try
to use the MP-3 lighting.
  Be sure the whole original is lit evenly,
and that no stray reflections are entering
the lens. Be sure the camera is centered
with the original and perpendicular to  it.
  The eamera could be locked in place at
any angle between vertical and horizontal.

The slidingfilm carriage
This  feature enables the camera to be
focused without  the removal  of the  roll
or pack  film  holder from  the  eamera.
 It  also makes possible the use of a very
wide range of films in the MP-3 camera.
 It  is possible to change from one film type                            6to another at any time and with  great
rapidity, without any film wastage.
  The sliding film carriage has two sepa-
late  film holder sections, one behind the
other.  Either  of  these can be brought
directly above the bellows and lens, for
use. (SeecAMERAopERATIoN,page L2.)
  The front section of the carriage serves
two main purposes. It contains the groundglass focusing screen and the reflex viewer,         c
and it is also the picture taking section for
the Polaroid 4 x 5 Land Film Holder, which
is simply inserted below the ground glass
after focusing.
  Viewing and focusing for  all film types
and sizes is done through the front section,
which is placed over the lens by pushing
the sliding film carriage back, as described
under cAMERAoPERATToN,page 12.
  To use Polaroid pack or roll film, simply
lock a Polaroid Land pack  film  or  roll
film  holder on the  rear section of  the
sliding carriage and pull the carriage all
the way forward to bring the film holder
over the lens.
  The  screen holder  of  the  Polaroid
Instant  Halftone System is mounted on
the rear section of the carriage.
  Once the camera is focused, the  film
plane in either section of the carriage will
always be in the true position. You can
change from  color to  black and white,
from print to transparency making, from
4 x 5 format to 3rZ x 4r/+ format, and so
on, and be sure that the film  will always
lie  in  the  plane  of  greatest sharpness.
Both the pack film and the roll film holder
have a built  in dark slide, so that  there
is no film wastage in the changeover.  There are a number of film cartridges           o
and magazines for wet process films that
can also be attached to one or the other
of the  film  holder sections. See the  list
of MP-3  accessories,which  is available
separately.
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Cameraoperation
 You are advised to go carefully through
 this section now, to enable you  to get
 fully  familiar with your eamera. But do
 not take any pictures until you have also
 read the sections telling you how to use
 the film holders and the films.
 1. Position reflex viewer over lens:  If
 the reflex viewer is not already positioned
 right  over the  lens, press the carriage
 release button   (A) -  picture  1 -  and
push the sliding carriage away from you,
toward the column, until the viewer and
ground glass are directly above bellows
and lens. Release the button, once you
have started moving the  carriage. The
carriage will then automatically lock in
the correct position.

2. Open  shutter:  Press the  sHUrrER
opEN arm  (A) back until   it  locks. This
opens the shutter and,  if  your  lens is
marked pRE-sETon the front of the mount,
 it  also automatically opens the lens to
its widest aperture.
  You should always focus with the lens
set wide open. If your lens is not of the
PRE-SETtype, open it manually.

3. Turn on lights: The switch is at the
bottom  right  side of  the column. The
MP-3 Standard and 225 XL Models have
an oN-oFr switch (right). The Model 245
XL has a HrcH-oFF-Lowswitch (left). Use
the nrcn  setting for the exposure. Place
the original to be photographed on the
baseboard,so that  it faces you right way
up. The image through the reflex viewer
will appear right way up, but reversed left
to right. Ifowever, your picture will not be
reversedin this way.

4. Frame image: Turn the locking knob
(A) to the left to free the camera head for
movement up  and down  the  column.
While observing the ground glass image
through the reflex viewer, raise or lower
the camera head, by turning the height
adjustment knob (B), until the image is
roughly of the required size.

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The MP-3 ground glass is marked for
four  different image formats. The outer
rectangle (A)  is for  Polaroid 4 x 5 film,
giving a picture area of 31h,x4rl  in. The
four corner markers (B) are for Polaroid
3rZ x 4rl pack film prints and for Polaroid
roll  film  prints, both  of these having an
actual picture area of 27/sx3fu  in. The
middle rectangle (C) outlines the 2tlx\fu
 in. image area of Polaroid roll film trans-
pareneies. The  smallest  rectangle  (D)
representsthe standard 24 x 36 mm format
of 35 mm film.

5. Focus: Adjust the focusing knob (A)
until the image is sharp. Normally  at this
stage the image will  not be exactly the
correct  size. Adjust  the camera height
again, as described in  (4) above, and
refocus. You may have to repeat this two
or three times, before you get the image
both exactly the right size and also com-
pletely in focus. Finally, Iock the camera
head in position on the column by turning
the locking knob (B) firmly  to the right,
and center the original on the baseboard
in the way you wish to reproduce it. Re-
member to follow the ground glass marking
which  is correct for the film format you
are using.

Basic focusing rule: To increase the size
of the image on the ground glass screen,
you must  lower  the camera head and
increase the  bellows extension. To  de-
crease the size of the image, you must
raise the camera head and decrease the
bellows extension.
  Normally you should adjust the camera
height first to get roughly the image size
you need, and then  adjust  the bellows     To decrease image size   To increase image size
extension to give you sharp focus.
  Ifowever, when you are working at or
near the L007o reproduction scale (that
is, when original and ground glass image
are nearly the same size) it becomesvirtu-
ally impossible to foeus by bellows adjust-
ment. When at such a setting, you must
reverse the  procedure described above,
and adjust  the bellows first  to  get the
approximate image size required, and then
attain sharp focus by adjusting the camera
head height.

                                                             13

6. Glose shutter:  Press the carriage re-
 lease button  (A). The shutter  will  close
 and,  if your lens is of the pRE-sETtype,
 the lens opening will close automatically
 to the chosen f-number you had previously
 set on the lens.  'When         using Polaroid roll or pack films,
 the sliding carriage must at the same time
be pulled toward  you  (away from  the
 column), to  bring the  roll  or pack  film
 holder into position over the lens.
  Release the button  (A) once you have
 started  to  pull. The  carriage will  then
automatically lock at the correct position.
     If your lens is not of the pRE-sEt type,
you must close your  lens to the ehosen
 setting manually.  For 4 x 5 pictures, no carriage shift  is             J
neeess&ty, the  film  holder being pushed
under the ground glass foeusing panel.
  For wet-process roll film magazines, the
viewer section  (front)  of the sliding ear-
riage remains over the lens, and the ground
glass panel is removed (see page L7).
  The 4 x 5 film holder cannot be inserted
until the carriage release button has been
pressed. Pressing this  button   will  also
make it easier to remove the ground glass
panel, when a roll  film magazine is to be
put in its place.

Special  precautions: To  get the  best
possible results with your MP-3, observe
these important precautions:

 1. Always keep the eamera lens clean,
and keep the inside of the eamera bellows
free from dust. Dirt and dust lead to lens
flare -  and lens flare  is a big enemy of
image contrast and quality.

2. When  copying   flat  material  on  the
MP-3 baseboard, be sure that the eamera
head is in  its true vertical position (and
not slightly angled), and that  it  is firmly
locked there.

3. Be sure that no part of the eamera is
loose, partieularly the lens board and the
bellows assembly. Long and heavy usage
could eause these to  lose some of  their
original  rigidity.    If  necessdty, eontact
your Polaroid Service Center for adviee.

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The interchangeablefilm holders
The MP-3 ean be used with the following:

1. Polaroid 4 x 5 Land Film Holder #545
(picture 1) or#500 (picture 2).

2. Polaroid #226 Land Roll Film Holder
(picture 4,right), for series40 film.

3. Polaroid #227 Land Pack Film Holder
(picture  ,left), for series100film.
4. Halftone Screen Holder #229 for the
Polaroid Instant  Halftone  System, and
used with  the 4 x 5  film  holder. For
method of attachment and use, see the
instructions  supplied with  the  Halftone
System.

5. A number of roll film holders for wet-
process films (see aceessory list, available
separately).

The 4 x 5 film holder: The usual operat-
ing position for the Polaroid 4 x 5 Land
Film Holder is in the front section of the
sliding  carriage  of  the  eamera.   It   is
pushed in below the ground glass sereen,
from the right, as shown in picture 3. The
ground glass is mounted  in a spring as-
sembly, which holds the 4 x 5 holder
firmly in position.
  The 4 x 5 holder cannot be inserted until
the shutter has been closed by pressing
the carriage release button.  Until  this  is
done a locking lever on the right side of
the eamera blocks aceess to  the 4 x 5
holder position.
  With  the  Polaroid  Instant  Halftone
System the 4 x 5 holder is NOT used in
the  front  section, but  in  the top  of a
special sereen holder, which  is attached
to the rear section of the earriage. (See
the instructions with the Polaroid Instant
Halftone System).
  For  full  information  on the use and
eare of your 4 x 5 film holder, read the
instruction  booklet  supplied  with  that
holder.



                                                                  15

How to attach the  roll and pack film
holders: The roll and.pack film holders
are used in the rear section of the MP-3
 sliding carriage. In the pictures that  fol-
low, the reflex viewer has been removed
from the camera, simply to show as much
of the rear section as possible. The holders
can be attached  with  the  reflex viewer
either in place or removed.

 l.  Hold  the  roll  or pack film holder so
that  the handle of the dark  slide is to
your left, and the door latch (A) is on the
 right.

2. Be sure that the dark slide is pushed
in all the way.

3. Place the  film  holder on the MP-3
carriage, as shown.





4. Firmly  seat the  film  holder on  the
camera carriage. The  film  holder has a
raised light seal frame (A) and the camera
carriage has a light seal recess (B), both
clearly shown in  the  picture.  (A) must
fit precisely into (B).
                        J

5. Lock the holder in plaee by pulling the
latches on both sides of the camera car-
riage toward you.  If  the holder will  not
lock  in plaee, it  is not seated correctly.





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How to attach a wet  process roll  film
             holder: A roll film holder which is designed
               for use with a Graflok, Graphic or similar
           4 x 5 camera back must be attached in the
           ground glass screen position (front section
              of sliding carriage) of the MP-3.
                After framing and focusing in the usual
           woy,  leave the  sliding  carriage in  the
            focusing position. Close the  shutter by
            pressing  the  carriage  release button.
            Unclip and remove the reflex viewer. Next
          remove the ground glass panel by  lifting
           up the two tab-shaped ends (A)  of the
           two tension springs, and sliding the panel
             out to the right. The loaded film magazine
         may now be put in position, and secured
           by means of the two  slide locks (A) -
           second picture.
           On withdrawal  of the dark slide from
             the  magazinq  the  MP-3   is  ready  for
            operation. To frame and focus for subse-
            quent pictures, replace the ground glass
           by reversing the above procedure.
            To ensure accurate framing, mark  or
            tape  the  ground  glass with  additional
           image areas, to correspond with  the de-
             sired film formats.
             For a selection of roll film holders, see
             the accessorylist available separately.
           NOTE: The Dyonies 35 Baek, taking
            standard 35 mm  cartridges, is attached
              to the rear section of the sliding carriage,
               in the same manner as the Polaroid #226
           and #227roll and pack film holders.

        How to adjust the ground glass position:
              In some instances, particularly when using
           a 35mm  film  back, the image position
             indicated on the ground glass may  not
             quite correspond to the actual position of
            the film at the time the exposure is made.
          To correct this, a slight adjustment in the
           ground glass position can easily be made.
          You need merely loosen the four smallI           screws (A) that hold the ground glass in
             place, slide the ground glass so as to locate
                 its 35mm rectangle at the right place, and
            then tighten the screws again. You need
             not remove the screws entirely to do this.
            For  more  detailed  information  on  this
            adjustment, please contact the Industrial
           Marketing  Department,  Polaroid  Cor-
             poration, at the address given on page 30.

How to use the Polaroid #226
LandRoll Film Holder
This film holder is for use with any Pola-
roid series 40 Land roll film.

Film loading: The holder can be loaded
when it  is either on or off the camera. If
it is to be loaded on the camera, begin by
lowering the eamera head to the base of
the column. This will give you the easiest
accessto the film holder.
  Before loading, be sure the dark slide
in the holder is pushed all the way  in.
Never pull the dark slide out when the
sliding carriage is in the rear position,
as this would cause the film to be fogged.



 1. Swing  the  latch  lever  (A)  down,
 (picture 1). The back will open slightly.

2.  Lfit open the back eover as far as  it
will go. Lower  it gently; don't let  it  fall.
Then lift open the inner panel and gently
lower it as far as it will go.

3. This is the position in which the holder
is loaded. Before loading, examine the two
steel rollers (A).  lt is important to keep
these rollers clean. Use a damp cloth to
remove any specks or deposits that may
appear on the rollers from time to time.


4. Carefully remove the film from  its foil
wrapper. Do not squeezethe package.
  The film consists of two rolls: the large
roll contains the material which  will be-
come the positive prints or transparencies,
and the smaller, spooled roll contains the
negative  material. On unwrapping  the
film, be careful not to break the seal at
the end of the positive roll (A).
  The small roll  will have either a tape
seal or a srop mark near its beginning.
 If there is a tape seal, never break this.
 If there is a srop mark, always unroll the
film to exactly this mark. Always read the
loading instructions printed on the film
leader, and follow them carefully.
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5. Drop the rolls into the wells on either
         side of the holder, as shown. Insert the
         large positive roll first, and then the small
        negative roll.





         6. Now close the inner panel.
U





         7. Fold  the  film  leader over the  steel
          roller on the edge of the panel, and lay  it
           flat between the guides (A) at the hinged
       end of the panel. Be sure the material lies
           flat and smooth, and is not tucked  into
        the well at (B).
I

          8. Close the  film  holder  cover. While
         exerting a downward pressure on it, swing
         the latch lever (A) all the way to the left
          to engagethe prongs, and then all the way
 1|       to the right to lock. There will be a short
 t       tab of paper extending beyond the cutter        bar (B).                                                 :A

9.  Lift the cutter bar by its plastic edge
(A), and grip the tab (B) firmly with your
right hand.





10. Pull the tab straight out, as shown,
until  it comes to a firm stop. You must
pull  out  the  entire leader -  about  15
inches. This may seem very long, but do
not worry -  the film  will stop automat-
ically at the right point. Press the cutter
bar down firmly and tear  off the leader
against the cutting edge. Discard this ma-
terial. The  cutter bar  is equipped with
special teeth, to aid in the tearing of the
comparatively tough base of the  trans-
parency films.  If you should have  diffi-
culties in tearing this stronger material,
you could use a pair of scissors instead.

 11. The camera is now loaded. You can
always tell which picture number on the
roll you have reached, by simply  lifting
the cutter bar and looking at the tab be-
neath it. The number of the next exposure
 is printed on the tab.

Before  reloading  the   film   holder:
Some Polaroid films are wound on con-
ventional spools and others are wound on
two separate metal end pieces. When the
whole film has been used, the spool or the
two end pieces will remain in the well of
the film holder. Be sure to remove them
before attempting to load a new film.





20
                          www.orphancameras.com

Taking the  picture: With  the camera
loaded, and  the  subject framed  and
focused,proceedas follows:

1. Press the carriage release button  (A)
and pull the sliding carriage toward you
until   it  stops. Be sure to  release the
button once you have started moving the
carriage; it will then automatically lock in
the correct position.

2. Pull out  the  darkslide  (B)  until   it
stops. This slide protects the film against
unintentional exposure and fogging. If
the slide is not pulled out, you cannot
make an  exposure, even though  you
operate the shutter.

3.  Determine the correct exposure. Read
carefully the film instruction sheet. The
EXPOSUREGUIDEFOR MP-3 CAMERAAND
PoLARoID LAND FILMS, published  by
Polaroid Corporation, enablesyou to com-
pute the correct exposure easily for any
film, with any model MP-3 and at any
magnification.
  Set the shutter for the correct exposure.

4. Make the exposure, by depressingthe
cable releaseattached to the lens.

WARNING: If you are using a lens marked
pRE-sETon the front of the lens mount, do
not use a cable releasein the socket next to
the carriage releasebutton, on the front of
the camera,for picture making. If you do,
all your pictures will be made at maximum
Iens aperture, no matter how the lens itself
has been set.  If your lens is not of the
pRE-sETtype, you can use a releasein this
socket, in order to make time exposures.

To return to the viewing/focusingposition
between exposures: First, reinsert the
darkslide. Only after this has been done
can the carriage move. Press the carriage
releasebutton, and push the carriageback
to bring the ground glass screenover the
lens again.
  The film holder in the rear section of the
sliding carriage can never be pushed be-
yond the bellows area while the dark slide
is withdrawn. This eliminates the danger
of possiblefilm wastage.
                                                                2T

Processing roll  film  prints and trans-
parencies:

1. Snap the red switeh (A) in either direc-
tion,  to free the film  for movement.  (If
you should accidentally snap this switch
at any time, don't worry -    it does no
harm.)




2. Raise the cutter bar (A) bv  its plastic
edge,and take a firm grip on the extending
film tab. Grip  it along the  full extent of
your thumb, as shown.





3. Pull the tab straight out, with a smooth
and continuous motion. Your pull should
be firm and  fairly  fast. The whole pull
should take about as long as it takes to
say comfortably the words "pull  it". Do
not  hesitate -  the  film  will  stop auto-
matically. Developmentof the picture be-
gins the moment you pull the tab. Should
the tab not pull easily, then snap the red
switeh again.



4. Having pulled the tab, snap down the
 cutter bar until  it loeks. Then tear off the
protruding  material and  discard  it.  As
well as starting the development process,
pulling the tab also advances the film into
position for the next picture.
  Wait the  full recommended develop-
ment time, according to the instructions
provided with each roll of film.



 22
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5. At  the end of the development time,
slide the  latch  (A) on the pieture door
to the left, and open the door.





6.   Lift  the  transparency  or  print  out
rapidly but carefully. Start at the cut-out
by the tab on the right side. The cut-out
is located at (A) in transparency films and
at (B) in print films. Do not let the picture
fall back on the damp negative. Having
removed the picture, close and relatch the
door.





 Please read  the CAUTION notice on
 page 32.
 Black and white prints must be coated'
 Transparencies must be hardened'
 For instructions see next Page.
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