Leica 1928 directions User manual

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= =
= Direclionsfor using lhe


      'Leica'          Camera

==                           affifl,=il\-                           ==
=             G*'"**il         =
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==            .l-rF-  II-\' eilz, Inc., New-York   ==                                 :-                    =
=            60 Easl,  10thSlreel                         ==
=              Special Agencies conlrolled by New-York Office r                         f
    Pacific coasl Slale.,;Jlill1.ftJt*i:       orficesal san Franciscoand
==                                                     =
=   \0ashinglon  Dislricl:  Paul L. Brand, Inveslmenl BIdg., \Uoshington, D. C.  =
=   Philipine  Islands:  Bolica de Sanla Cruz, Monila, P.  l.                  =
    Cuba:   Anliga & Co., Havana, Cuba.                                 =
=_                                          =
fruurnrntummunnmmnnmmnnuunnmuummmnmmnnumu
July 1928/3000.                                     Germany
List: Photo 2237a.

( I  _ : _  _ '   _         -Lelco             Lamera
                  (Palenled in Germany)
     for taking single pictures on a standard
          cinemalographfilm strip.





    U
        t
    V





                     Fig. 1 Ulz act. size).


                                     'Leica'  The exlernal appearance of lhe      camera is shown in
Figs. t and 2. Turn down lhe upper narrow side of the camera
and open lhe cameta lid n (Fig. t ) by lurning lhe lid swivel o
(Figs.1 and 3) from 'closed' to 'open' as far as il will go and
Iift the lid a little al this end. The lid pin p at lhe olher end
rvill then easily unhook.

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   The interior of lhe camera will lhen presenllhe appearance
shown in Fig. a. Now wilhdraw by the knurled knob the film
dramber e uhder lhe reversing milled head d (Fig. 1) and like-
wise lhe winding spool m under lhe advancing milled head g
(Fis. t ).





                        qh
                      Fig. 2 (t/2 acl. size).

   The  film chamber  c  (Fig. 6l has a  cylindrical shape
and is made in lhree parls, viz. lhe ouler shell e1,lhe inner
shell c2 and lhe film spool e3. Wilh the index finger of lhe left
hand disengage lhe onter shell spring e5. It will fhen be an
easy maller lo withdraw lhe inner shell ez and from lhe lalter
lhe film spool d.





                              Fis. 5.

    The  film chamber should be loaded  in  lhe dark room,
unless use is made  of the daylight spool menlioned below.
The camera is designed for perforated standard cinematograph

films. Each film chamber accommodates a film slrip about 5 ft.
 long, which suffices for 36 pictures measuring 36 X 24 mm.
 Ill lz X  I  inctr).  Ii  will, however, iake  strips of any shorter

                                                                                                                 n (    L J  g6





                         lig.4rlz [ac]. size).

length. The film end intended to go inlo ihe chamber spool
should be cut  in lhe manner indicaled in  Fig. 6, i. e. to a
shorl taper with a fronl end 3/r indr. wide. Then, with lhe
coaled side inward, pass il lhrough the spring eLof lhe cham-
ber spool (in lhe direclion of lhe arrow) and, letting il proiect '/r    indr at most, double   il over  (Fig. 6). The olher end should
be cul lo a laper al least 4 indres long, beginnig of the middle
of lhe end of the sirip, but so thst the laper mdy not cul inlo
any of lhe perforalions*r(Fig. 5). Now wind the slrip, introduce
the loaded chamber spool, wiih the knurled knob leading, inlo
lhe inner shell ez(Fig. ll and lhen pul in both logelher, wilh lhe
knurled knob on lop, inlo lhe ouler shell st, so that the lwo
slils in lhe lwo shells may correspond (Fig. S). The ouler shell
spring d will then retain lhe inner shell by the noldr nol marked.
The slit of lhe film chamber will now still be open. If now lhe
knurled knob of lhe chamber spool be lurned a little way lo lhe
left the free end of the  film  will move forward by  ils own
elasticily. Seize il and draw  il out to lhe exlenl of aboul lrlz
indres (Fig. 6). Now hold the film dramber ers shown in Fig. 9,
release lhe ouler shell spring d with lhe index finger of lhe lefl
hand and close lhe film dramber with lhe righl hand by giving
lhe inner shell half a lurn backwards  lo  the  lefl,  unlil the
spring e'" engages in lhe inner shell noldr marked Z.  In lhis
stale lhe drarged film chamber should be kepl,  unlil reguired,
in the card case supplied with  it.
    Daylight Film Spool.  The films are now also supplied in
lhe form of daylighl film spools, ready cul lo laper and spooled,
whidr renders the operalor independenl of lhe dark room.
        ')     We supply r:ady cul films, if reguired.

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These spools should be  inlroduced  inlo lhe film chamber (in
subdued daylight) in lhe mannet described above (The empt-v
chamber spool c3 is  nalurally dispensed with  in  this case).
While ihe two slils of the two shells are still in correspondence,
the film chomber being accordingly open, delach lhe black paper
strip and, together with the film end, pull it o-ulabout 11/einches.
Then close ihe film chamber, as directed above and shown in
Fig. 9, and complelely pull oul the black papet strip, resiraininq,
aJfai  as possible, lhe film. The black paper should be held
close up lo lhe  film chamber when  il  is being pulled out, as
ofherwise il may lear off shorl and difficulty may be experienced
in recovering lhe lorn edge  still in lhe film ctramber.
    The  film chamber may be iniroduced  inlo lhe camera
in subdued daylight. To beqin wilh, pull out from the chamber
abouf 4 rnches of the tapered commencing end of fhe film and,
with the coaled side out, clamp  ii in the dire clion of lhe arrory
in lhe spring-Noteml of lhe winding spool m (Fiq. l0),  bul do nol
wind  il on.        that the siraight edge of ihe film should be in
conlacl with the spool flange atladred  lo  lhe  knurled knob.
Otherwise lhe sprockels will noi regisler properlY ryith lhe per-
foraiions in the slrip and may damage ihe film, which in  ils turn
may cduse olher obslructions. The laper of four -inches should
begin al the film chamber slil. The winding spool and the film
ctrJmber togelher with the  filr;i are lo be iniroduced  iointly into
lhe camera, tne film passing through lhe camera slit ra (Fig. 11).
In fhe event of ihe film chamber, while being inserled, meeting
wilh an obslruction before reaching ils posilion, give a slight
lurn fo lhe reversing milled head d (Fig. 1), so ihal lhe cham-
ber may slip into polition. The chamber fits lhe camera in one
 parlicular position only (see Figs. 4 and 5), and is  not  inter-
ctrangeablewilh the winding spool, which, moteovet' can be dis-
tinquished by its differenl form and nolably by it9 smaller knurled
kn5b, so thal ihe lwo  spools are  not liable to be confused.
    Vhen  closing the camera  (Fig. l2) nole thal lhe swivel o                                                   'open''                                             The per-on lhe camera lid n should be set righl over lo
 forated proieclion on the cameta lid should be hooked over lhe
 lid pin p. afier whictr the lid should be shut down and the swivel o                         'closed',             'open'                                 turning as  far as   il  will  go'                        lo locked'from
 This will cause lhe locking extension of lhe swivel to grip the
 inner shell pin e6 and open lhe film chamber. The film w,ll ihen
 be guile free lo advance. Now move the small lever/  (Fig..2)
 from R to A. This engages lhe mechanism of lhe shuller. wind
 lhe advancing milleO tread g lwice and release the shuller but-
 ton  i fwice. This is reguired" in order to move forward the firsl
 useless portion of the iilm.  The  film slrip advances correcllY
 while winding when lhe reversing milled head d (Fig. 2) turns

direclion opposile to lhat of the arrow.   Il is advisable lo turn
lhe reversing milled head d back a lillle in lhe direction of lhe
arrow until the film becomes sensibly lauf.     'fhe
         counling  disc   i silualed under lhe advancing milled
head g can be rofaled independenlly of the latier with the aid
of lhe irvo proiecting lugs. Turning  ii lo the lefl, sel  il so lhat
ihe counling arrow A may read 0 (Fiq.2). Every fime lhaf the
advancing milled head g is wound lhe counling disc advances
aulomalically lhrough ohe interval.
    The focal plane shulter winds under cover by turning lhe
advancing milled head .q (Fiq. 2) in lhe direclion of the arrow
as far as  it  will  go.  At the same time lhe film advances by
the width of a picture.
    The  slit should be sef, while wound, with ihe aid of lhe
speed bulton 6 (l'ig. 2). The laller has exposure numbers giving
fraclions of a second (e. g. 20 -  1/eos€cold, Z for lime expo-
sure). Pull lhe speed buflon up and then turn il unlil fhe required
exposure numl,er is opposile to lhe speed arrow g, and allow
lhe bulfon io spring back.  Il is advisable lo accusto'm one's self
to exposures of ,lzoIo 1/66secofld and lo regulale lhe intensily
by means of fhe lens diaphragm.  Shorl exposures, sudr ds r/zoo
and 1/r,onsecond, are solely required for sporling pictures rn a
good lighl, when nalurally the diaphragm should be opened to
its full extenl. Time exposures should be made  with  a short
wire release, which may be allached by a fixing clamp lo lhe
camera above the shuller bullon  i.  \fhen  the speed button b
is sel ai Z, fhe focal plane shuller will remain open as long as
ihe shulter butlon h or lhe wire release is being pressed down.
A slandard screw socket is provided for using lhe camera on
a sland
                                'Elmar'   The obieclive  is a  Leilz        Anasfigmat of a  focal
lenglh  of 2  indres and  a  relative aperlure  of  F/5 5.   Il  is
mounled in a lubular sockef, whidr can be  easily wilhdrawn
and locked by lurning lo lhe right.
   The diaphragm  is operaled with ihe aid of lhe diaphragm
lever s (Fiq. 1). The scale gives lhe relative aperlures of ihe
obieclive. The ralios belween lhe limes of exposure and lhe
full apertures are as follows:
         Relalive ape rfure:         5 5  4.5  6.3  9  12.5 16
         Relalive lime of exposure:  1.6 2   4   E  16   32
   The distance scale  is sel by lurning lhe lens mounl wilh
lhe aid of lhe focussing lever I (Fig. 1), the reading being faken
with lhe index. The range of lhe rotalion is resiricled by fhc
distance slop u. The focussing lever  I is relained in lhe infinity
posilion (co) by lhe infinily spring u, whidr prevenls ils acci-

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denlal  molion lrom  its proper  posiiion. The  infinity spring              t
should be depressed in ihe evenl of piclures being iaken at         '1.close ran(les, which may be as shorl as 3 feel. The depression
of lhe spring releases ihe focussing lever, and lhe lens maY                                                                                         a{.lhen be sel  lo  lhe dislance scale.
    The view  finder  a (Fig. 2) should be broughl up close lo
lhe eye. The view wilhin fhe oblong frame should be  in lhe
middle of lhe circle of light so as lo ensure accurale agree-
menl n,ith lhe film picture.
          'Fodis'    The                 short-range   finder slides into the clamp  /
(Fig. 2) al lhe side of the view finder.   It serves for guickly
and accuralely delermining shorl distances.   lt is only needed
rvhen piclures are lo be laken al distances wilhin len Yards.
The manner of using il  is described in a separate pamphlet.
    The release of lhe shuller bullon fr (Fiq. 2) should be made
slowly, the finger being sleadied as shown in ihe fronlispiece.
The bulton should nol be released spasmodically, as ihis may
cause lhe camera lo oscillale. Time exposures should be made
wilh our wire release wilh fixing clamp.
    To wind bacln the film. When lhe enlire slrip has been
exposed (which is indicaled by lhe advancing milled head g
(Fig.2) refusing to move freely when an altempl is made lo lurn
il) or when a parlly exposed strip is io be taken oul*), lhe film
should be wound back from the winding spool m  inlo  the
fitm chamber e (Figs. 4 and 5). To lhis end lhe lever  / should be
sel lo R  (Fig. 2), whereby the  shuiler medtanism becomes
disengaged, so that lhe film is free lo lravel back. Now ho'd
down-fhe press bulfon i and, while doing so, turn the reversing
milled head d (Fiq. 2) in the direclion of the artow engraved on
ils surface until further winding meels wilh a  lillle resislance-
Conlinue lo wind against lhis resislance. During this stage of
lhe molion lhe end of the film deladres itself from lhe winding
spool spring m1. Cive the milled head d aboul five more lurns
in order that the whole of lhe film may enter ihe film chamber.
    The  film  dtamber  may  now be removed   in  daylighi.                             lTurn lhe  lid swivel o (l-ig. 5) to the left lo 'open' (as far as  il
                                                    ouler  shell     go),                                                lhal lhe                                 see        open                lhe                 cameta                                     lid                              n andwill
                                   (Fiq.                                                               wiih           I                                                accuralely                                       4)                                 engages            of lhe                   dramber                    filmsprin-g       s5
lhe inner shell noldr Z, afler which lhe  film chamber maY be        ^
wilhdrawn.

           ')  In lhe  lotler case o piece  of  lhe  film  should  be  cul  off,  lhe [lcnglh  iof
whidr ofter len exposures would be l7 cm. o[ rvosle film at the slarl plus l0;X 5'7 cm.,
 i. e. 54 cm. in all.

Direclions  recapitulaled   in memorandum  form.
                 (To be carefully follorved.)
When daylighi spools are used lhe direclions apply flom Fig. 7
                       onwaro5.
    Arrangemenl for iniroducing lhe film inlo the camera.





                                    C                      A.ql.                ;.d"





                                                                                                                       o

                                                           E

                                       I'ig. 5.

           l. Wind film on chamber spool  (in dark room).
                                                                           --   rTi;t ffi.,     c1:ffi$$





                           Fis. 6.
Pass taper end of film in lhe direction of lhe arrow lhrough
spring d  (coated layer within); double over and wind on
                   fcoaled side wifhin).

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                         C 5 ---.1,                                                          l
                                                          I





                            Fig. 7.

Slip film spool  [or daylight spool) into lhe inner shell c2,
                  knurled knob foremosl.





                           Frg. 8.

Slio l,,othinlo ihe ouler shell et. Place lhe lwo slils in agreemenf.
Pull out about 4 cm. (tri2 in.) of end of film (in daylighl spool
            logelher rvilh lhe black paper strip).
                          t0

c5 c6





                             Fis. 9.

Close film chamber by releasing lhe ouler shell spring d and
giving lhe inner shell c! half a lurn backwards lo ihe lefl till the
spring engages in lhe nolctr Z.  (Then in lhe case of daylight
spools, pull oui cornpletelyihe black paper strip, reslraining ihe
                       film while doing so).


         2. Load the camera  tin subdued daylighl).



                                                                                                                                                                                                                                                       l  l  l  ,





                                        ,l0.                             Fis.

Take oul lhe winding spool m, pull oul aboul 10 cm. (4 in.)
of lhe film from lhe film chamber and clamp firmly under lhe
winding spool spring ml in lhe direclion of lhe arrow [coaled
side out and slraighl edge  of  film  slrip in  confacl wilh the
        flange of the winding spool nearest its knob).
                                           II

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                           Fis. 1 l.

Place opened camera in front of you, with the lens looking away
fiom you, the film chamber on lhe right, lhe winding spool on
lhe lefl.  Iniroduce ihe film lhrough lhe camera slil ra wilh lhe
laper edge down. (ln lhe evenl o[ lhe ctramberbeing arrested
before arriving in position give a slight lurn to lhe reversing
milled head d.) The ouler slreli spring ai (Fig. 4) must engage
                                 al Z.





                          Fig. 12.

                                  'open'.Turn the lid swivel o right over lo      Hook the camera lid                                                         'closed',ovet pin p. Close lid and turn lid swivel o right over to
                             t2

Move lhe lever / (Fig. 2) from P to A. Turn ihe advancing
milled head .qlwice and press down (for advancinglhe useless
porlion of lhe film). Turn lhe reversing milled head d once ot
lwice in lhe direclion of lhe atrow, unlil lhe film becomes taul.
Turn lhe counting disc  i  lo lhe lefl, by means of its lwo lugs,
till 0 is opposile lhe counting arrow  /t.
     5. Taking lhe piclure. Draw oul lhe lens, lock il by lurning
lo lhe righl, set the diaphragm (in lhe case of close range pic-
lures likewise the distance scale and lhe shorl range finder).
Turn lhe advancing milled head.9 in lhe direclion of lhe attow
as far as  it will go, verify  or  s-et lhe speed bulton 6.  Sighi
lhrough lhe view finder a. Slowly release lhe shutter bullon h
(Fronlispiece).
     4. Take oul film (in daylighl). See Figs. I lo 5. Move lever
/ from A to R. Keep shulier bullorr h pressed down. Turn lhe
reversing milled head d until resistance is fell, lurn on (causing
lhe film end lo become deladred from fhe winding spool spring),
and give five furlher turns. Turn the lid swivel o (Fig. 5) lo lhe         'open'.left to        Open lhe cameta  lid n (in the evenl of the
ouler shell spring d nol being in engagementat Z lurn the inner
shell slighlly to  the  righl  ot  left until lhe spring engages).
Wifhdraw the film chamber s by ifs knurled knob.

      Lerlz'Leica' Comera
              with Compur Shutter.



  12
  15                                           10
                                                    13   16




                  Fig. 13 (about tlz acl. size).
                                 l5

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     In use this cameta  differs in bul few respecls from lhe
camera wilh focal plane shutter. In place of lhe latler the lens
is fitted wilh a Compur shulter, which is lhe most reliable of
all central shulters.
   The compur  shulter may be sel for the different speeds
wilh lhe aid of lhe disc 9, lhe oblainablespeeds being:  l, Llz,
rls, Llrc,rlts,'lr,r, l/rnoand t/soosecond. To  this end the small
disc 10 should be hrrned with the mark M (for lnslantaneous)
to the index line. The shutter is wound by lurning lhe lever
1l as far as it will go, and il may be released eilher by depress-
ing the lever 12 or lhe lvire release altached lo lhe socket 15.
Wherr the disc 10 is sel Io 7 (Time) the shulter opens when the
lever 12 or the wire release is momenlarily depressed for lhe
first time, and  it shuls when the second pressure is applied in
like mernner. When the disc 10 is set to lhe mark D (Pressure)
lhe shuller remeins open while the lever 12 or the wire release
is being held down.
   The lens sockel should be pulled forward before taltineta
picture and may be locked in three differenl positions by lurn-
ing  it lo ihe right.  Set  it lo lhal position in which lhe disc 10
of lhe Compur shuiter is situaled at the top.  In this way lhe
shulter may be easily released by applying the index finger of
lhe righl hand to the lever 12.
   The pressure butfon 2 reguires to be sharply depressed
afler each exposure to release the calch, after which lhe  film
can be advanced.
   The index  of lhe counler 4 should now be set to 0, after
which 36 piclures may be laken in succession. Each exposure
is automatically registered by lhe counter.





                  Fig. 14 (aboul LI a act. size).
     Leilz Developing  Drum. This arrangemenl is very  coft-
venienl for developing lhe film strips. The melal frame wilh
lhe glass cylinder, upon which the film -strip twith the coated

                                                                       l 4

side out) is fixed by means of lwo clamps, can be guickly set
up above dishes placed in readrness and  containing the re-
quisile solulions, etc.  \When using melol-hydroguinone ror-
mally exposed films reguire to be developed for aboul 7 minules.


               Simple                           'Leica'  Enlarging Apparatus for        Fihns.
    This simple apparafus is available  for use with  daylight
as well as arlificiol light.  In lhe latler cas e lhe apparatus is





                    Fig. l5  ('/ro acl. size).

used in coniunclion with the melal casing shown  in  Fig. 15
confaining a 100-watt filament lamp.  The  lalter has a  bulb
of opal  glass and  furnishes a uniformly diffuse lighl, so that
                                                   t 5

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a condenser may be dispensed with. The lamp is connecled
direclly lo lhe supply circuit by means of a plug conlact. The
film, withoul being  cul up  inlo  single pictures, is clamped
under ihe glass plale of the film window, with its coaied side
inwards.  Afler releasing ihe clamps lhe  film may be moved
on from piclure lo picture. To facilitale handling a long  film
slrip lhe apparalus is fitted wilh a  film holder  at each side.
   The olher end of lhe apparalus has a hinged cover wilh
a spring catch, afler lhe  release of which the enlargemenl
paper or poslcard may be placed in the frame.  ll is retained in
posiiion u,hen the lid is closed.
   The lens in lhe apparalus has a  focal  lenglh  of 64 mm.
and is permanently focused upon lhe enlargemenl paper.
    The choice of a suilable enlargemeni paper is a malfer of
considerable imporlance.  Ve  would  specially recommend
highly sensiiive qaslighl papers. A negalive of normal densilY
rvill then reguire an exposure of abouf 15 to 30 seconds for lhe
poslcard srze.  In good dayliqht one-fiflh of this lime  of  ex-
posure rvill suffice under lixe circumslances.


               Variable                            'Leica'  Enlarging Apparalus for        films.
   The apparalus is inlended exclusively for use with arlificial
light    lf  is adapted for making enlargemenls ranging  in  all
sizes from 9X6  cm. lo 24X18 cm. (51/rX?rlrIogrlzXTLltin.)
as well as for enlarging any porlion of a Leica film.  It is like-
wise available for e nlarging kino  film piciures Q4 X 18 mm.)
upo to 18 X 15 cm. (7112X 5 in.).
     The apparalus consisls of a base plale wilh uprighf, along
whidr slides a movable arm cartying a globular melal casing
wilh a 60-walt opal lamp, a film carrier and an obieclive. The
melal casing is well  venlilaled. The opal lamp  furnishes a
diffuse lighf, sudr as is besl adapted  for enlarging.  The con-
neclion to the eleclric lighi circuit is eslablished wilh the aid
of a plug conlacl.

                            1 6

The obiective is excellenlly correcled.   Il has a focal length
of 50 mm. and a relalive aperture of no less ihan F/5.5, whidr
admils of enlargements being obtained at comparalively short





                  Fig. 16 (about 1/ro act. size).



exposures, for  instance, in  lhe case  of an enlargemenl to
14Y.9 cm. lhe required exposure is B to 16 seconds, assuming
a highly sensitive gas-lighl paper being used.
   The negalive film should be placed between the lwo folding
glass plates, whidr are supplied with lhe apparalus. The plates
should lhen be pushed into the film carrier, wherein they are
held by two springs.
   The base is furnished with a separale movable board with
fixing clamp for the receplion of lhe paper, which is held down
flal and  in  its reguired posilion by means of a hinged glass

                                                                       l 7

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plale.  In  lhe  acl  of  lifiing lhis  glass plale several sp.ting
pins are made lo prof ecl on lwo sides. These serve as posilion
slops for the enlarging paper.   Ils posilion  is accuralely .ad-
iusied wilh the aid of a while card upon which lhe  various
sizes are drawn. Afler sharp focusing, the white card should be
replaced by ihe enlarging paper. Exposure is made wilh the
aid of a srvilch.



         'Eldia'               Prinling Apparalus
                    for'Leica' Pholographs.
    This apporalus in  ils improved form, serves for  prinling
lhe negalive film of lhe Leica Camera upon a posilive film, in
a manner which renders ihe seguence of  lhe  piclures inde-
pendenl of that of lhe negalive.
    Having depressed lhe fork, commenee by  lifiing  off lhe
window pl,ale, and nexl remove ihe  covet  of  lhe  apparalus.
The end.of the posilive film slrip should be pointed in a slant-
ing position, and lhen clipped in lhe  direction of  the  attow,
and.with the coaled side down, under the  flai spring  of  lhe
spool, having lhe shorler knurled knob. Aller winding, slip lhe
other.end of the film in the direclion of lhe arrow, under the
spring of the second spool, and fold   il over.  Nexi, n,g!'Fig.bot-h
sbootl inlo lhe apparaius in the manner indicated in       lB.
The longer knurled knob will accordingly be  silualed  at  the
side of lhe sprockel drum. Now close the lid of the apparaius.
The film is made lo advance by turning lhe longer spool knob
in the direction of lhe artow.  During ihe molion, the teelh of
lhe drum will engage in lhe perforations. This loolhed drum
has ratchels for- lhe engagemenl of a  spring calch. Every
olher ralchel conforms lo  an  advance  of  out  56 X 24 mm.
Leica piclure, while successive ratchels conform lo lhe slandard
24 X 1S mm.'kino picfure. The negative film should be placed
under the fork, with ihe coated side inwards. The depression
 of lhe  fork occasions a  sufficienlly large gap  for  applying
lhe window plale. V/hen released, lhe fork presses.lhewindow
 plale home suffrcientlyfirmly. The two  sides  of  lhe window
have a guide qroove,  for  lhe  inlroduclion  of a  single film
 piclure. This arrangemenl is nol reguired for longer films.
                             1 8

We supply a _separale interdra.ngeablewindow. plale, with
an appropriate clearance for printing pictures, of lhe slandard
24 X 16 mm. kino size. As lhe film is made to advance, from





                     Fig. 17 Ulz act. size).

piclure lo piclure, lhe spring pressure, due lo the fork should
be released, by depressing it so as to plotect lhe coating from
damage. The glass plale  in  lhc window shourd always be
properly cleaned.
   The spools in lhe apparalus hold a film slrip fully 10 feel
Iong.
    Vith  negatives of normal density, the positive film reguires
an exposure of half a second to one second, at a dislance of
a yard, and when using a filament lamp of 32. c. p.





                     Fig. 1B Ulz aci. size).

                              'Uleja'   A  descriplion  of our         Roll Film Proieclion Appa-           'Leica'ralus for                   films will be found in a separate pamphlet,
whidr will be sent on applicalion.

                            1 9

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     Ernsl  Leilz,  Oplical Works,  \felzlar.





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