Bronica ETR Polaroid back User manual

The Polaroid Land Pack Film Back for  the Zenza Bronica ETR has been
developed in cooperation with the Polaroid Corporation and incrcasesthe range
of interchangeability in film backs, in addition to the film Backs ETR for 120
and 220 roll films. Thus, the user has greater flexibility  in photography with the
Bronica ETR, as well as a means for previewing the light and exposure in an
actual shot before using other roll films. The Bronica ETR Polaroid Pack Film
Back is designedfor exclusive use with the Zenza Bronica ETR cameraonly.





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READ BEFORE USING THE POLAROID PACK FILM
BACK
Please read through this manual carefully before actually
taking any pictures with the Polaroid Pack Film Back.
Practice the operations as instructed and/or illustrated in
this manual, without  actually using the pack film. Thoroughly
familiarize yourself with  the operations so that you can go
through them without referring to the instructions. Load the
film pack only after you are sure that you have got the simple
operatingproceduresdown pat.
 It  is recommended that you start with the black-and white
film  first. Always read the instruction sheet packed with the
 film, as these instructions may often change, in keeping up
with improvements which are made in the film.





               CONTENTS

   Readbefore usingthe PolaroidBack                        1
   Nomenclature                                         2
1 . Preparationsfor picture-taking
    a. Films for the PolaroidPack Film Back                  2
    b. Eight hints for getting better pictures                  2
    c. Attaching the Polaroid Pack Film Back                 3
    d. Loading the pack film   .                            4
   e.  If no white tab sticksout                           6
2. Picture-takingproceduresand Developingthb print
   a. Settingthe correct exposure                           7
    b. Developingthe print                                   8
    c.  If yellow tab fails to appearupon pulling the white tab      1 1
   d. Temperatureis important                                                           I 2
3. Using the Cold Clip               .  :  .  .                                                               l 3
4. Cleaningthe rollers                                  L4
5 . Possiblepicture faults                               15

N o r n e n c l a t t r r c





                                                                  White tab slot


                                                                    Yellow tab slot



                          Lower  latches



  I.  PREPARATIONSI.OR PICTURE.'I',\KIN(;
  a   Filrnsfor lhe Polaroid Pack Film llack
 The following  five types of Polaroid Land Pack film can be used with the Bronica ETR
 Polaroid Pack Film Back. The Polaroid film packs produce eight prints of 83mm by 105mm
 size or 83mm by 85mm size, depending on the film type. However, in the case of the
 Bronica ETR, the actual picture image area is only 42.5mm by 55.lmm,asshownonpagp
 10, becauseofthe 4.5 x 6cm format ofthe camera.

   Film Type   B&W or Color                  Print Size                 Film Speed
     105    B&WNegative  83mmX 108mm (3-Ll4"x 4'L14") ASA 75
     107    Black-and-white 83mmX l08mm  (3-U4"x  4'Ll4'\ ASA 3600
     fO8    Color        83mmx 108mm  (3-U4" x 4-U4', ASA 75
      87     Black-and-white 83mmx 86mm   (3-L14"x 3-318') ASA 3600
      88    Color        83mmx 86 mm   (3-L14"x 3'318') ASA 75
  \ilhen using Types 87 and 88 film packs,pleaseread instructions for "Loading the Pack
  Film", on page4, verycarefully.


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It  is suggestedthat you have a clear idea of what you want to take before you even load
 film in the Polaroid Pack Film Back. The following eight hints should be helpful towards
 gettingbetter pictureswith your PolaroidPackFilm Back:-
  l. Set exposurecarefully.
 2. Move in closer to the subject which will give you a bigger imagein the print.  ,
 3. Choosecolorful subjects,when usingthe color film.
 4. Consideryour background carefully.,especiallyfor flash shots.
 5. Pull the tabscorrectly.
 6. Time developmentcarefully.
 7. Alwayscheckthe temperature.
 8. Alwayskeep the rollersclean.
 Each of the above hints is important towards getting bettei pictures and will make the
 differencebetweena good or poor picture.



 First, remove the  film Back ETR  for 120
 or 220 roll film from the camera body.
Next, place the Polaroid back against the
 rear end of the camera body and insert the
latches at the upper end of the accessory
into  corresponding openings at the upper
end of  the body.  Finally, press the lower
end of the accessory against the body  until
 it locks securely.

To  remove  the  Polaroid  back,  simply
depress the film back releasb button on the
camera body  and  the  lower  end  of  the
accessory can be detached, as illustrated.
Simply  shift  the accessory up  slightly and
pull  it away.

( 1 )  Differing from the Film Back ETR, the
     Polaroid back can be attached or de-
     tached without  insertion  of  the dark
      slide. Therefore, always insert the dark
      slide  before  detaching  the  accessory
     from the body, when there is pack film
        still loaded in it.
(2) The shutter can be released even when
     the dark slide is inserted in the Pola-
     roid  back  and,  therefore, be  extra
     careful.

d    L o r d i r r g t h e P a c k F i l r n
Open  the  pack  film  box  carefully.  In
addition  to the film package, there should
be a tube of coater. in the case of black-and
white  film, or a set of print mounts, in the
case of color film, which should be put back
into  the box  once more  for safe keeping.
When removing the  film package from  the
box,  hold    it  carefully  by  the  edges or
corners only. Do not press on the center of
the  film package, as you may ruin one or
two prints.
To remove the pack  film  out  of the film
package, hold  the  undotted   side  of  the
package firmly and tear open the other side
of the package completely, along the dotted
 line. Hold the pack film carefully, too, or by
the edges or corners. The bag of  silica gel
packed together with the color film should
be taken out and thrown away. Read the
instruction  sheet carefully  in order devel-
op your prints correctly. Save the box  for
carrying prints safely.
 Always  load  the pack  film  in  the shade
 and not  in direct sunlight, to avoid fogging
 the film. The pack film should be loaded, if
 possible, with  the Polaroid back removed
 from the camera bodv.

 Opening  the  Polaroid  Back:  Hold  both
 ends  of  the  wire  latch  and  pull  in  the                                                              \
 arrow-indicated direction. The  front  plate
 should pop up slightly.


 Inserting the Pack  Film:   Open the front
 plate all the way. Next, hold the pack film
 by the edges,with the printed surface of the
 safety cover (film  .face) towards the camera,
 insert the pack  film  into  the gqide frames
 and push down in the arrow-indicated direc-
 tion.





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Inserting Types 87 and 88 Pack Film:   The
Types 87  and 88 pack  films  cannot be
inserted fully  into the guide frames, like the
Type  105, 107 and 108 films which are
longer. Therefore, coincide the protrusion
(B) on the side of the pack film with a guide
notch (A) cut into the side'of the Polaroid
back. Then carefully close the front  plate
which  will  nest the pack film  correctly  in
position.


Pressthe pack film against the Polaroid back
which will nest it correctly in position.





Check the White Tabs:  Check whether the
white tabs, under the black tab, are free and
not folded under the pack film.





Closing the Polaroid Back:  Press the front
plate strongly against the rear cover and fix
them securely with  the  wire  latch, as  il-
lustrated. The black. tab of the safety cover
should be  sticking out  of  the  small slot
(white  tab  slot), when  the front  plate  is
locked. If not, reopen the Polaroid back and
lead the black tab out into the slot.

Removing  the  Safety  Cover:   Grip  the
black tab  firmly  with  the thumb and fore-
finger.  Pull the black tab (safety cover)  all
the way out of the Polaroid back. Pull out
straight, in order not to rip the safety cover.
The safety cover can be discarded.





A white tab should stick out  of the small
slot (white tab slot), when the safety cover
is pulled out. Do not pull the white tab as
yet, however, as it is only an indication that
the pack film has been loaded correctly and
that everything  is ready for taking the  first
picture.





 If  there  is  not  white  tab  sticking  out,
after removing the safety cover, this must be
corrected  before  proceeding  any  further.
The correction should be made in the shadb
or indoors and not in direct sunlight.
Open the Polaroid back slightly and, with-.
out   disturbing   or  removing  the  pack
film push the end of the white tab out into
the open.


 Close the  front  plate  securely, by  press-
 ing on both  slides strongly, with the white
 tab  sticking  out  of  the  small  slot, and
 fix the wire latch securely.





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As noted  in  "Loading  the Pack  Film",
the Types 87 and 88 pack films are nested
in the correct position when the front plate
of  the Polaroid  Pack Film  Back  is closed
strongly. Whon opening  the Polaroid Back,
therefore, always place the film  face on the
bottom  and swing the  front  plate upwards
to open. See that  the pack  film does not
move up when opening the front  plate.
Procedures to  be  taken   "If   the  Yellow
Tab  Fails  to  Appear  Upo,r  Pulling White
Tab" are also the same.

I        l , l ( I t R I     I \ K l \ ( ;           I ' t t r ) ( t . t ) t R tl :
                                          Standard Expousre        \ \ l )     l ) l  \  t  I o l , t \ ( ;     i l l t     I , R t \ l
 .i.  St'tt I lrg t hc ('orrr'r t  [' r pr )\i:rr'                                        Types 107 and 87
 Always use an exposure meter determining                                                Subject in bright sun
 the accurate exposure setting or use the AE       (EV 20)        1/1,000sec.F32 Finder on the Camera.                                                Subject in brightTypes 105, 108 and 88 pack films have film                                        open shade(EV17)
 sensitivitiesof ASA 75 which should be set                                                    11250sec. F22
 to the exposure meter.  If not available, use                                      Type 105, 108 and 88
 the closest-matching one or ASA 64. In the                                               Subjectin bright sun
case of Types 107 and 87 pack films,  the                                       (EV 14)       U125 sec. Fll film sensitivity is ASA 3,000 and, therefore,                                               Subjectin bright
 set the exposure m€ter  to  3,000  or,  to                                         open shade(EV 12)
 3,200, which  is close. However,  in  bright                                                     1160 sec. F8
 sunlight, the film  sensitivity may exceed the
range of the exposure metbr in which case a
                                              Note: Use the Bronica ND4x filter, in theND4x filter must be used.
                                              caseof Types 107 and 87 films, whenUse the  Standard  Exposure  table  as a
general guide for average subjects in bright              the subject is in bright sun for an
 sunlight or bright open shade,when setting              effective setting of 1/500 sec. and
exposures  without   an  exposure  meter.            F22. (SeeNeutral Density Filter.)


NEUTRAL DENSITY FILTER
The ND or neutral density  filter  is used to reduce the volume or intensity of the fight
 through the lens to the film. It should, therefore, be used to reduce the light when there will
be overexposure,even using the fastestshutter speedand smallestlens opening combination,
 suchas when taking pictures outdoors in the bright sunlight.
The Bronica ND4x filter reducesthe light l/4h the actual intensity, which means that the
exposure setting must be readjusted by this factor. However, it will be more convenienct
 to readjust the ASA film speed setting to l/4th  the actual film  sensitivity, in this case,
becausethe exposuremeter or the AE Finder's automatic exposuresystemcan then be used
without making further adjustments.

Picture-Taking Procedures
Load the required Polaroid Land pack film in the Polaroid back, following previousin-
struction. Then, attach the Polaroidback to the camerabody and proceedwith the following
preparationsfor taking the picture:-
l    Rotate the film winding crank until  it stops. Use short, rapid ratcheted strokes,in this
     case.
2.   Rotate the multiple exposurc lever in the clockwise or arrow-indicated direction. (see
    page23 of the instructions for the Bronica ETR.)
3.  Determinethe co[ect exposuresetting for the subject.
4.  Draw out the dark slide from the Polaroid Pack Film Back.
All preparationsfor taking the picture are completed with the above.
 I   Always hold the camera body and never hold the Polaroid back when carrying the
    camerawith the latter attachedor during photography.

Triangle (A)  Mark on the Dark  Slide
A  triangle  (A) mark  will  be seen on  the
dark slide of the Bronica ETR Polaroid Pack
 Film Back when  it  is pulled out part of the
way. When the dark  slide is pulled out  far
enough for  the mark  to be seen, photog-
raphy will be possible, which means that  it
will  not be necessary to pull the dark slide
out all the way when in a rush.


 l r       [ ) , - 'rr' i o l ' r l i r !I  l r ' . l ' r r r : l
Grip  the  White  Tab: UPon  taking the
picture,  hold   the  camera  back  (with
Polaroid back) with one hand so that the
white thb can be p"lled with the other hand.
The  Polaroid  back  should be  oriented
perpendicular to the horizontal, at this time,
and the white tab should be gripped firmly
 with the thumb and forefinger.


 Pull out the White Tab:   Pull the white tab
 straight out, until  it is completely out of the
 Polaroid back. and then discard it.
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Let the Yellow  Tab Appear:   Pulling out
 the white  tab, as above, opens a narrow
 door on the right-hand end of the Polaroid
 back, and causes a yellow  tab  to  appear.
 Therefore,  this  side  door  must  not  be
 prevented from  opening, when pulling  tfe
 white tab.
  If no yellow  tab appears when the white tab
 has been pulled out completely, stop further
 action and correct the mistake, as explained
 on page 1 1.
 Never pull a white  tab when a yellow  tab
 can still be seen. If you do so accidentally,
 stop further action and correct, as explained
 on page I l. too.
 Grip  the  Yellow  Tab:   Pulling  the  white
 tab, as above, does not  start development,
 which always takes place outside the Pola-
 roid back. The white tab  is simply pulled
 out to place the yellow tab in position for
 the next  step, which  is  pulling  out  the
 yellow tab itself. Therefore, grip the center
 of the yellow tab firmly.
Pull out the Yellow Tab:   Pull the yellow
tab straight, moderately fast, in one smooth
uninterrupted  action. Development  starts
when  the  yellow  tab  has been  pulled
completely out and, therefore, start timing
development  from   that  poin t.     I t   the
developed print  is full of white specks, slow
down a  little as you are pulling too  fast.


Let  the  Print  Develop:  Development  of
the print takes place outside of the polaroid
back, when the yellow tab has been pulled
out completely. Therefore, let the picture
develop for the full time recommended in
the instruction sheet. While waiting for the
print to develop, hold  it by the yellow tab
or place it on a flat surface. Don't touch or
bend the print. or peel off the white paper.
Don't let the film flap in the wind outdoors.

Separate  the   Print:  After   the  recom-
mended  development    time,    quicklY
strip the white paper (print)  off the brown
paper,  starting from  the  corner  with  the
exposure numbet. Although the coror print
will appear to be nearly dry, do not touch  it
for a few minutes. When completely dried,
mount  it on a color print mount.




Coat   Black-and-White   Prints:  Do   not
touch the face of the black-and-white print,
too. The prints must be coated to prevent                                   'See
fading and  to add a glossy finish.      the
instruction sheet for further information  on
coating.
The negative, from which the piint has been                    ,$
stripped  off,  should  be  folded  with  the                               .it
moist  surface on  the  inside,  to  prevent
contact  with  the  chemicals   still  on  the
surface. The negative should then be put  in
a  peper  b"g,  box  and/or  discarded  into
proper waste containers. Do not throw the
negatives away indiscriminately.
Do  not  coat  color  prints  or  the Type 87
print.





 Let  the  Coating  Dry:    After  coating  the
black-and-white   print,  do  not  touch  the
 print  face until  the coating has completely
 dried up.
 Polariod  prints  taken  with   the  Bronica
camera cover a 6x4.5cm  area within  the
 large print area, as shown on the right.





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Do not pull another white tab. Insead,open
  the front plate slightly so that a finger carr
 be inserted to hold dorvn the pack filnr and
 keep it  in place. This operation should, ot
 course, be done indoors or in the shade and
 never in the bright sunlight.



 While holding the pack film down with one
 finger, open the Polaloid back  all the way
 and take a firm grip on the topmost yellow
 tab, with the free hand.





 Draw. the yellow tab completely out of the
pack film and discard it. While the polaroid
back is open, check the rollers and see if
they are clean.
 If  a white  tab has been drawn  out  ac-
cidentally, while the yellow tab was sticking
out, then draw  out  the yellow  tab and
discardit, at this time.



Close the  Polaroid back  after confirming
that the next white tab is sticking out of the
small slot.
When closing the Polaroid back, check that
both sides of  the  frontplate  are securely
locked with the wire latch.





                                 1 1

d.   Temperature is Important              How TemperatureAffects Type 108 and 88
Cold and heat have a great effect on the way       Color Films: The normal developingtimes
your   picture  develops  and  on  the  print          for  color film are set for temperatures of
quality.  Even moderate cold can ruin your       75"F (24"C) and warmer. When it is a bit
pictures unless you  take precautions. The        cooler, the action of the developer chemi-
important   factor  is the temperature  of thq        cals slow down and you must develop for a         ' t
camera  and   film   at  the  time  you  are       longer time. See the film instruction sheet
developing the picture.                                for more details.When the temperaturegets
A  load  camera  carried  outdoors   in  cold      below 65"F (18"C), the chemicalaction is
weather  for  half  an hour  gets thoroughly       so sluggishthat the picture will not develop
chilled.  If you then enter a warm house and       properly without  help. The help  is the
a few  minutes  later  shoot  a  flash  color        Cold{lip.  (See page 13. This is sold sepa-
picture, you cannot produce a good print.  It        rately at camerashops.).Prints developedin
takes a long  time  to warm  up  the  cold        cold weather without the Cold'Clip wili be
camera and film.                                 dark, with muddy colors.
However,   if camera and film  are kept warm      Wheneverit is cool enough so that you must
indoors, you can snap.children  in the snow      wear warm clothes,use the Cold{lip  for all
outside, pop back and develop the picture        color  pictures.  If  you  feel temperature
normally.                                       pleasant when you are ligfttly dressed,make
In  cool  weather,  development  times may       developmentin normal waY.
have to be adjusted  according  to  the tem-      When you are  sweltering and can think
perature. The  instruction  sheet with  each       only of a cool drink and a swim, it may be
film  pack  contains   detailed  information         too hot for best resultswith color film; your
about development  times and temperatures.         prints may show weak colors. For details see
Be  sure  to  read thege recommendations;        the film instruction sheet.
they may change from  time to time.
In  very  hot  weather,  chemicals may come         Effect of Temperature on Type 107 and 87
out  of the edges of the picture  assembly as       Black-and-White Films:  Best results are
you  pull  the yellow  tab  to begin develop-        obtained with  the film's normal range of
ment.   If these chemical  collect on the steel       developmenttimes in temperaturesof 59oF
rollers they can cause defects in your  prints.        (15'C) and above.When the temperatureof
So, when  it  is hot, be extra  careful  to keep         film  and camera are both  below 59"F
the rollers  clean.                                 (15"C),  develop  for  longer-than-normal
                                                      time. Read the  instruction  sheet for  full
                                                         particulars. Never use the Cold{lip  with the
                                         Type 107 pack film.





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. l   1 u , l : r , , t r l : i  t i . i l ! . i r , i , '
The Cold{lip    is used only  for development
of color  prints, when  the temperature  is
below 65'F  ( 18'C).
 If you are not sure of the temperature, use
the Cold{lip,  as no harm will be done even
 if the temperature  is somewhat higher than
65' F( 1 8" C).




To use the Cold-Clip, put  it in a warm inside
pocket about five minutes before taking the
picture and preheat  it with  the body tem-
perature. If the temperature should be near
32"F (0'C;,  put the Qold-Clip between the
arm and body  which  will  heat  it  to  the
maximum temperature.
Double  the  exposure   for   your   color
pictures,  if   it  is cold enough for you  to
consider using the Cold-Clip.

Immediately after pulling out the yellow tab
and staring development of the print, place
the developing film  in the Cold{lip,   with
the yellow tab section extending out. The
film must be inserted between the Cold{lip
within ten seconds.
The Cold{lip   should  then be  put  in an
inside pocket,   if  the temperature is above
41"F (5'C), or between the body and arm,
if it is below that temperature.


The film  should be developed for 60 sec-
onds in the Cold{lip   (in the above condi-
tion) and  then  removed, with  the  print
stripped off the negative paper in the usual
manner.
The Cold{lip   should be placed in an inside
pocket once more,  in preparation  for the
next picture.



                              1 3

Dirty  rollers  will  cause troubles, such ae
spotty development and/or blockage of the
yellow  tab which  will  then be unable  to
protrude. Dirty  rollers are caused by devel-
oper chemicals sticking to the rollers and to
the inside of the rear cover and, therefore,
 the rollers should be checked, whenever new
pack film  is loaded, and cleaned, if neces-
 sry.
 Rollers  can  be  cleaned  even when  the
Polaroid back is loaded.

 Lift  up  the red-colored latch, which  will
permit the roller assembly to be detached.
 Detach the assembly and check the  rollers
 carefully.





First, wipe the  rollers with a damp cloth,
then, follow  with  a dry  cloth. Wipe until
clean and  never  scrape the  rollers  with
metallic articles or with your fingernail.
At the same time, open the slot door for the
yellow  tab, and clean the slot opening, as
well as the region around it.




Use an air-blower and clean out the inside of
the rear cover, before  returhing  the  roller
assembly to its place.





                                  1 4
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Nearly Black Image Or Solid Black:    If you
 cannot see an image at all, the film was not
 exposed. You may have neglected to  pull
 out the dark slide on the Polaroid back or
 the black safety cover from  the film pack.
 Or perhaps the shutter did not open. If the
 print is very dark, increasethe exposure.


 Very  Light  Image Or None  At  All:  The
 film was either greatly overexposed, or  it
was accidentally fogged. Make sure the dark
 slide on the Polaroid back is inserted when
removing or attaching the back.
 Both black-and-white  film and color  film
 will be fogged  if you  pull  out  the safety
cover before putting  the  film pack in the
Polaroid back, or  if you remove a film pack
from  the  back  after  having pulled  the
safety cover.

Undeveloped Edges Or Corners:  These are
usually caused by pulling the yellow tab out
at an angle. In  this example, the tab was
pulled down instead of  straight. When this
happens the developer is not spread evenly
over the picture, and thus edges and corners
may not develop. Always pull  the' yellow
tab out straight and swiftly,  all the way.



Broad Streak:   If you have one or more of
these running across the short width  of the
picture, you stopped or slowed down while
pulling the yellow tab to start development.
Always pull the film out in one smooth and
uninterrupted motion.




                              1 5

Many  Small  White  SPecks:  These are a
sign  that  you  pulled  the  yellow  tab  too
swiftly. Try to pull  it a little less rapidly.





OrangeRed  Marks  Along  Edge:  Reddish-
orange marks  like  these along  the edge
and/or  in  the  corners  of  the  print  (with
color  film  only)  generally indicate  that  thre
yellow  tab was pulled  out  of  the Polaroid
back at an angle. Always  pull  the yellow
tab out  straight and smoothly  all the way.




Moddy Looking Print:  The picture was not
developed long enough. Develop both black-
and-white and color  films  for the  full time
recommended  in the film  instruction  sheet.
See page 13 on how  to use the Cold{lip
with   color   film.  Underdeveloped   color
prints will tend to be a brownish pink.




Oblong  Area  In  Print:  The  oblong  atea,
which  will be pink or red in a color picture,
indicates that you did not pull the white tab
 all the way out  of  the Polariod back. As a
result, when you pulled the yellow  tab, the
white tab was pulled back into the Polaroid
back,  thus  spoiling  your  picture.  Always
 pull  the white  tab  all the way out  of the
Polaroid back.


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Speed Grip-E

               PrismView-Finder-E





                     Polaroid Land Pack Film Back