Voigtlander Tourist User manual

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  lnsfrucfioff book

                                                      r .l'



  Voigtlonder & Sohn
  BRUNSWICK_GER't,I

Nr. 3341 /236 engl.

Preliminory Note
  Every Voigtlondh cornero is mode to lost for yeors pro-
vided   ond this is o point to be noted    thot it is hondledwith reosonoble-          core.'ln his own interest- therefore, the user
should corefully study the instructions for the monipulotion
of the instrument. lf, however, he works the vorious move-
ments in o rondom monner without following our directions,
 ii is eosy fo couse domoge to o'pporotus of such refined
construction, ond the repoir of ony domoge will noturolly
cost time ond monev. Tlrerefore moke it o rule to exercise
co re.





                           fig. l.  Opening the comero
To Open the Gomero for use
        the comero in the left hond ond support it with the
           'ith the left thumb press on the releose button next        mero hondle os illustrotion (fig. ll. The bose will
      g out ogoinst the thumb, proceed to press the
        n to right ongles until the struts engoge on either
        e thumb is not ploced in thot position, it moy couse
         to drop down with consideroble force ond this moy
            hinges.             r

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  The next, operoiion is io pull out ihe U-front (fig. 3) by meons of the finger grips B, see tig 2. The pressurj oq the
 rrnger grrps. musf be retoined until the pointer 10 (fig. 3) is
 on, the infinity mork 1m1 orr the focussing scole. Tokg- porti-
 culor core in doing this, otherwise the fiictures will not be
 shorp, owing to the lens being out of plbce. Let go the twc
 grips; the comero is now in focus for "infiniiy".





                   fig.2. Pulling our ihe l"n, ,tJndord

Focussing
  For_focussing obiects ot neorer distonces, turn the lock
leuerT (fig.2) ond the rock ond pinion con be put into oction.
  The scole fitted to the boseboord is enoroved in feet ond
shows the correct position of the front foi obiecis ot certoin
distonces. For criticol focussing it is odvisoble to use the
focussing screen.
  In ony cose ofter the correct focus hos been o
olwoys, lock the lever 7 to preveni the front slippil
porticulor lever is of unique construction ond will'e
ony position, only note thot it is pushed right home
  To use the double extension disengoge lever 9 (fi6.
lever outomoticolly forms the _infinity stop in  iis'pos.ition, pointing to the right. To disengoge turn ii to

Now pull out the front completely to the end of the corrioge,
ond proceed to focus os before described.
  The focussing screen is provided with o protecting .hood
to cut off light-from outside. A smoll cotch lB (fig.4) keepsthe flop of-the hood in position. lt is reodily erected by
pushingj the cotch outwords.





                                                                                                                    't5



                                                                             14
                                                                           l3

                                                                             12
           8 9           l0     ll
                 fig.3. Working ports of the comero
   In cose the focussinq screen should get broken toke por-
                                      Tromfrom.insideInsloe Tnethe  ulr corerre toto removeremovJolloll splintersspllnters oTof qloss0loss       The screen frome is token in both honds with the
        rned to oneself, ond by meons of the thumbs the
       e broken screen ore pushed owoy to the open side
       iome. A new focussing screen is eosily inserted os
     oted in fig.5.
   7he focussing screen hos o smooth side ond o groined side
    ott). This is the side which should olwoys point tovrqrds

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 the lens. ln extreme coses when no new gloss con be ob-
 toined on ordinory u.lel(posed photogroph'r"c ploie will seive
 tempororily very well for the purpoG. Also,'here, see thot
 the emulsion side foces the lens.





                                                 focussi ng





                fig. 5. To exchonge the broken focussing
  Al,woys see thot the corners of the gloss screen ore slighlfl
cut owoy to ollow the oir to escope out of the bellows when
closing the comero.

lris Diophrogm
                                                     shorp  The iris diophrogm ploys on importont port in,
focussino. lt is'operoted bV the lever l5 (fig. 6) ottoched to
it    rt rtt""r ond oilows the operture of the lens to be reduced
os" required.
  The chief purpose of the stop is to extend the depth.,"f
                                                                                   th.efocus, which'question is deolt with ot greoter lengih,in
                                      us-ed when the lens isr"ifion "Depth of Focus". lt is olso                                                                                              itsmoved up br down or to one side or the other from
lentiol pbsition. lt then improves the shorpness of definition
   in"      of tt^," field which is thus disploced. The third                                                   stopping"iuse of "ag;the" stop, but one seldomly needed, is for                                            over-exposure. ofA;;;  in very brignt light so os to ovoidthe plote. This is done if the speed of the shutter is not high
       to cut down the exp6sure to ihe required time. By                                                      longerstopp.ing"nt']-oh down to obtoin gieoter depth of focus, o
             is olwoys required, so thot in mo.ny coses there ore
"tpotri"liniits to the extent to which this con be done.
Deprh of Focus -)
  The lenses fitted to our comeros ore designed to give ot
full operture o shorp picture up to the edges_ of ofY obiect
                                                                                                   islvino'in the plone' wnicn is focussed on-. But when it
ibor.iir"J to obtoin shorp definition, ot the some time., of. ob-
i;.j; ot-aitt"rent d'rstonces from the comero, the "depth .of
iocur" needs to be extended over o number of .plones in ,theobiect spoce ond the lens must be stopped down. lhis
opplies to oll lenses. 'Wh"n         focussing on o given distonce eoch.lens operture
                                                       whichcorresponds with-o certoin ronge of dept,h of focus,
b.cot"t qreotJr os the lens is"stopped' down. The oim of
the phJo"grophel is to od.iust the stop 9np the .distonce   ussed o"n, ,o thot os much os possible of the subiect folls
                                               focus.*;itrir ihir tonge (or region) of depth of
 iA'olonce on the qround oloss will show thot, when.stop-     "d.r*n f,n.'           the deolh of focus extends for less towords ihe
5;d"ro ln,in towords the extreme distonce. For this reoson
   *) More correcily termed  "Depth of Fie ld"                                                 '

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 focussing is done, ct the outset, on obiects which ore relo-
 tively neor. This opplies olso when there is little scope for
 stopping down on occount of the light or movement of the
 subiect, since on unshorp foreground is somewhot conflicting
 with the noturol perspeciive seen by the eyes, which ore
 occustomed to perceive o neor obiect more cleorly thon
 one CI long woy off.
  On every "Tourist" comero is on engroved scole of depih
 of focus which is orronged on the co-ordinote system. In the
 left-hond verticol column ore the distonces in feet, ond in
 the top horizontol volumn the siop volues. lf you go
 olong the horizontol colunrn opposite o porticulor distonce
 until you orrive ot the verticol column below o certoin stop
 volue, the figures you find here represent the zone of shorp-
 ness in feet thot the porticulor focus ond stop volues give
You'                                                                     tt             t8         ^-{


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                                                                                                                                                                                                                                                                                     DigitallyDN:ou=butkus.org,Date:cn=Mike2021.12.01signedButkus,email=mike@butkus.org,by19:22:06Mikeo=ButkusButkus-05'00'camera manuals,c=US        14 -+                        Mike Butkus


                                    www.butkus.us
                                fig. 6. Compur Shutter B
Gompur Shutter B wirh deloyed qction
  Round the shutter is the rototing ring 16 which is engroved
with the leiters. T (long time exposuies) ond B (shoit time'1
exposuresiexposuresi ondo!d withwith thethe instontoneousinstontoneous soeedsspeeds fromfrom I'I' fotot/25s sec. (or r/zoo sec.). These lotter ore morked os whole {,,
numbersnumbers insteodinsteod ofof froctions,froctions, soso osos toto bebe moremore eosilveosilv reo*.reod.*-,1
  Instontoneous.exposu.res: Turn the ring 16 till..the. speed. r"--
quired is opposite the index obove thJword "Voigilonder".                                                                                     .t
                             :sif

r/1se sec., so   The speeds ronge continuously from I to
    thot any intermediote speed moy be obtoined by setiing
    the index line between two consecutive numbers, e. g.                  1/5e         t/,ee                                               '|rc    between    ond     sec. But this does not op,ply between
                                                     1/256 sec. (or t/roo sec.), nor      l/1se ond the moximum speed of
    between B ond 1 sec. The shutter is set {tensioned) by pres-
     sing the lever l8 to the right (when viewed from the frontl
     until it is felt to stop. As o generol rule it is immoteriol
     whether the shutter is firsi set to the speed ond then tensioned
    or if the reserve order is odopted, but with the moximum
    speed it must olwoys be set to speed before tensioning. The
     shutter is releosed simply by pressing on the trigger l4 or
    the flexible coble screwed in ot 13.
     Time exposures. For time exposures the shutter is noi
     tensioned; the lever l8 is locked when setting to T or B ond
    ony force opplied to press it down will domoge the shutter.
    By setting the letter B to the index line, the shutter opens on
     pressing the flexible releose or trigger l4 ond remoins open
    os long os the pressure is mointoined. To give on exposure
     of, soy, 3 seconds, repeot distinctly ond of the normol rote
    of speokrng "one little second, two little seconds, three little
     seconds". The trigger or releose is pressed of the "one", ond
     pressure reloxed of the end of "three little seconds".
     By setting the lever T opposite the line, the shutter is
    opened by the first pressure ond remoins epeh until o
    second pressure is given. This is the setting to be used when
    focussing on the f5cussing screen ond ri,hen moking very
    long exposures or exposures by floshlight.
      Deloyed-qction device: To moke on exposure with yourself
    in the picture: the shutter is first tensioned in ,the usuol
    monner. Then the button 17 on the rim is thrust in the direc-
     tion of the engroved orrow, whereupon the lever lB con be
                                                                self-portroit    operoted o second time, thus tensioning lhe     releose. Now press the trigger 14 or the flexible releose, iust      t 'os       in moking on ordinory exposure. This sets in motion the t$t   :   clockwork m-echonism by which the shutter is o,peroted ofter
I   obout l2 seconds. The speed is odiusted by setting the ring
   L,tl.  8        rf  t
        '-rd-I   i   .l:;            ft

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 io the required fime                         .(1 to r/roo sec.). The deloyed-oction de-
 vice connot be used in coniunction with the mirximum speed.
  The exposyre hoving been mode, the shutter outomoiicolly
 odlusts itselt tor normol exposures, so thot the operotion
 obove described must be refeoted'if it is wished io giu"-o
 further exposure with the deloyed-oction device
                                         "rp%v"a. Exposure
  .The right exposure, which is the most essentiol foctor in
 photogrophy, depends on three points:                     '1.              Aperture of the iris diophrogm.
             2. Speed of the plore.
             3. Volue of the ocrinic light.
  .W," typply with eoch comero on exposure colculotor, withwhich the time of exposure moy be quickly ond 6osily
oscertoined.
Finders
^ The Voigtfonder Tourist comero is fitted with two differentkinds of finder, which ore used os follows,
   Direct-vision Finder. This consists of o wire frome ls (fis.3)ottoched to the right-hond side of the lens-front (vieiled
from the front).ondLn eye-piece l6 ploced on the right-hona
Long      side .of the comero-bbdy. wh'en not in use, t"nJ wire-frome encloses the lens ponel. lt is brought into the workinq
position by.turning  it outwords through oi ongle of lB0o onJ
is then held in positiol by springs. The eye-pi5ce hos likewise
o spring hinge, ond for use, is turned Lp'porollel with the
wire-frome. In order to include the corrbct port of the
subiect, the eye must be ploced so thot the ouilines of the
frome coincide with the mosk of the eye-piece.
 on occount of the unolteroible position of the frome finder,
ot the side of the comero, there is o sliqht difference be-
fween the picture shown by the finder ond the picture octu-
olly on the ground gloss when tokinq neor obiects (known
os "porollox"|. In th-e cose, of the T'ourist, this difficultv  is
overcome by o very clever orrongement of'the diopter. You
con drow out the diopter until the respective distonce  is

                                                                                                                        .

next to the block metol tongue so thot the frome finder gives:                     -onyyou. the correct field for       picture. Unlike the briliiont
finder, the frome finder olso givei you the correct field when
us.in'g the rising or cross froht; you con even rely.lenses.upon  itwhen using the bock cell of the lens or Focor      A
further odvontoge is thot lhe comero is held ot eye levelwhich usuolly_ meons thot the picture hos o more pleosing
perspective.'For the obove reosons we would recomreni
you to use the frome finder whenever possible.
   Brilliqnt Finder. When toking pictures ot the level of thechest, the brilliont finder I tfig.3) is used, in the normol po-
sition for up.right ,pictures, ond ofter turning through o right                                       "viewed"fromongle for oblong'pictures. The picture is                ine
normol viewing distonce of obout l0 inches, toking core fo
ploce the eye"directly obove the centr" oi'tne fiiaei. fn"
mosk on the top of the finder is speciolly designed to show
boih the upright ond oblong pictures.
  The smoll but bright picture in the finder con be mognified;
three of four times by fitting on o Finder Mognifier (see
"Useful Accessories" oi end 6f tnis booklet). WEen cloiing;
the comero the brilliont finder must olwoys be in its norrno-l
position (for upright pictures), otherwise the comero will be
domooed.
Holding rhe Comers
   In coses when some ottroctive subiect hos to be snopped
ot the right instont ond without ottrocting too much ottention,,
the comero is used in the hond. Needless to soy one must
hove presence of mind ond, especiolly, confidence in the.
opporotus. lt is therefore well to proctise oll the required
movements with the unlooded comero until they con be done
without thinking obout them.
  Whilst op.ening, ond focussing the comero, o steody po-
sition must be token Up, since ony slight movement of the
comero during the exposure would result in pictures with
double outlines. ln using the direct-vision finder, the comero
is grosped with the lefihond on the boseboord for upriqht
pictures, whilst for oblong pictures it is held with the' right
t0

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 hond on the top side of the body. At the some time it is mosi
 necessory to.giye further support to the comero so thot the
 elbows should be pressed firmly. ogoinst the body. When toking upright.pictures  it is usuo'lly 6est to suppoii jn" .L-
 m.e.ro ogoinst the foreheod ond the bridse of t'he nose;                                                                 'nose,*iit, oblong. pictures,, ogoinst. the                                 .chin or cheek-bone ond              to. which is found most convenient foi ioot ing .T_.:or,qing through the finder.
 .  l,n ,ui"rying the subiect in the brilliont finder, the comero is held, fgr both                  .upright_ond oblong pictures, with the iefi h'or-rd on the boseboord. lhe comero bock is pressed ogoinst the chest.
  A simple but ,proctic'ol expedient moy be recommended io  .
 those who hove not o steody hond. This is iust o strinq or cord.,5 to 6ft in length; on fhe upper end is o l;;;  ,"oi" so thot it con eosily-.be mode loigjer    rroller.-  iri- toning                                   9r upright.pictur:es, this loop is put r6und the uoieboorJ b"-
 tween the lens front ond'the itruts;. for oblong picturer, ii it put round. the turned up diopter. When moking on exposure,
the free (lower) end o'f the'srrinq is held ,"atith"  ioJi" thot the string is pulled tout wheI holding ih".or"ro in ihecorrect position.
     operoting                    shutter by lever or trigger, ony movement                    f.h9  .ln                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  lor rne nond rs lioble to be communicoted to the comero. so
thot the sofest course is to use the ilexible l"ut" ;;i;e;held in o wide curve. Before ro[ing th"-"*porrrL, i;i;'miost;                                                                                            l,deep breoth inwords ond then out, "sinc" th" toaV isot rest crfter the lotter. By toking t'he required .or", u*po-
sures o.1 llztsec. or less moy be liven with the.or"ro ri"iain the hond.
  In circu'mstonces where there is time for previous prepo-
rotion for the exposure,.porticulorly os regorar .oi"trt
focussing o1 the ground'glbss, the comero i;"b;st r.**"ato. o tr.ipod. lf need be, lt moy be ploced on o tobLe or.other tlot surfoce. The comero body is provided with two
screwed "bushes", o.ne for upright pii:tures ond tl-re other foroblong          .pict,ures. when first' sc"rewing to the tripoJ,certoin thot the tripod screw is not Too long foi- the 'no["buih,

                                                                           IN

otherwise the threod is eosily domoged. lf the screw on the
tri,pod is too long it must be shortened or o little pocking
fiiled.
  The spirit-levels 3 ond l2 fitted in the milled heods 4 ond
1 I  (fig.'3) ond protected by the mounts, serve to indicote
when you ore holding the comero level in either position:
horizontol or verticol.
Rise ond Foll of Lens
  ln order to ovoid "drunken lines" in qrchitecturol ond
similor subiects, cqre must be token to see thot ihe ground-
gloss is upright, but in this position of the comero, too much
                                 rule. To reduce the omount orIoreoround is                 'inu,               i'ncluded-t;;;  -is os- bi;;A;;;nJ,             iorsei on In" p-*..'"i. 1r'i' Lppri"'  Iwhen using the comero in the horizontol or verticol position.      I
The milled-knob 5 (fig.3) controls the rising ond folling front.           -lFor horizontol views the sliding front is oper.oted by thesmoller knob 4, combined with knob 5 on the right hond top
of the U-front. The following toble gives the greotest possiblt            I
movement in the different models:
              s rze             horizonto    I          nse                     foll

     3112" x2112"                 51rc"                   3la"                       1 14"
                                                                 -116t,                   3ls"      4114" X3114't                                  1 lz"                       ot
      5112" X3112"                                 1 lz"                         11' '116I   tt                  5la"
  Agoin it is pointed out thot the more ihe rise the more the
decentrotion of the lens ond olso the more the iris diophrogm
hos to be stopped down.
  The normol position of the front is indic'oted by morkings
ond the front'should olwoys be in centro! position before
closing the comero.
Ghonging of lenses
  The lens ond shutter con be removed from the front of the
Tourist by two movements.
  The lever 2 (fio. 3) is held in its norm,ol position by ospring, which keeps the shutter in ploce. To unlock this

12

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  device, ihe lever 2 must be pressed down, when it is possible
                                                                                     tli"-rl-.,u'il",.'l"iri"in"n to turn the shutter to the l6ft. This rouelneni-i*itnoi should only, be very srnoll- The shltter
 releoses itselt outomoticolly from the lens.-'.- ponelF    ond moy be token out.
   This device off,erl                 Tony odvontoges for the serious worker,  o., g., the interior of the comero is"much more eosilv cleone,i
 when the shutter is token off os olso is the                                                       - bock component of the lens, if the shutter is r"routbl".
 . The       exchonge. gf the. seporote components of the normol
 lens for those ot the Tele-Dynor is more eosiiy
 th'e shutter is removed thon'when in pLsition' in"ir".[j';h;"tn" ioruro, olso for o,ny speciol exposure the boi[ lens rov be'mirch
 1nore       eosily unscrewed'when the shutter is rerov"l onA hos to be rescrewed into the front mount.
    It moy olso be mentioned thot lenses oi troller operture gJ^?l lgng focus ond the Tele-Dyno. roy    r"r"- chong.ed,           ,especiolly if fitted into o seporote shutter"    whlch""iirvis olso titted with o similor boyonet cotih.
  The replocing of the shutter is corried out in the opoosite
 monner. The shutter is put in ploce,- turned g"ntty l.  iti" i"rt (the shutter moy be turned to ihe leit ot tn" inort ot on onole
 of 2!i, opproxim,olelyt. in rhe. lens pon"t, f rlriul f;rii'o"ii#i"ond then turned to the rig.ht till the locking lever 2 snops
 into the lens pgrrel, respecTively untii the proper position oiTne snutter is telt b-y o perceptible stop. Tl"re shutter must
then be obsolutely ffrm on the' lens p".5i       ii'rho"rlj"f," im,possible to turn it in ony direction:       ";;
Rgor componenrs of the Heliar ond skopor fenses
 . The Helior ond skopor ore unsymmetricol lenses so thot
            the singld componenrs ore not reof lv- ri,it"uIl1:.1:tl:ollvTor pnologrophy,.but in proctice they con be emrjloved for
smoil oolects ond then render on imoge of opproximotely
three times rhe size which would be tv;.lv-in"-;;r;i;i"
l:l:g:,tenses. on ochievement which is noipoiribi" *itn'rvrr"iri.ir
  In order to tgkq sucl'.r pict'ures the front compone,nt  is
screwed out ond the full double uitunrion oiJn5-oJiro*,
                                                               l3

employed, ond the lens ploced so neor the obiect fo be
 photogrophed, thot the enlorged imoge con be seen on the
focussing screen.
  The nexi ihing is to stop down o little, shorply focus on the
obiect by moving the comero either towords or from  it, ond
moke the exposure by using the smollest stop. The relotive
effective operture is colculoted by meosuring the length of
the extension, thot is from the diophrogm to the focussing
screen ond dividing this by the diometer of the octuol iris
diophrogrn opening e. g., length of extension llllz  in.,
                                               61                                                       F161.diometer of stop 3l-to in. 111f 2,3115:                                                    , i. e.
  You must be very coreful to focus occurotely, os the
                                                                                                                                                                                                                                                                                                                I'distonce between the obiect ond the lens will be verv close.
Looding the plote holders
  The looding of the plote holder must toke ploce in the
dork-room. Eoch time before using, oll dust should be token
out of the interior of the plote holder ond out of the veivet,
os every speck of dusi lying on the plote during exposure
couses cleor gloss spots on the negotive.
   In the shodow of the ruby lomp o plote is now ioken out
of the box. This is olso corefully dusted without touching the





                                    25
                        8.  lnserting the plcrte
emulsion with the fingers. The plote holder is then token
between the thumb ond the other finoers of the left hond
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 in such o monner.thot the open side foces the ruby light. (Velvet to the top.)
                                 sides of the plote ore oriooed  , wilh. the.right hond the long
 (emursron tocing the pCIlT of the hond) ond the Ftote  is                            bo_tgm. (E;;lslon to rhe fronr.l p!.".a,il,lh" ,si99ve bt the lhe right.thumb  lifts the cotch 2s $ig.B) to be seen underthe
          As soon,o; the plore is in posirion ogoinsr the Illl:t_?trjp: oofS or rne p.tote holder, fhe cotch con be returned to  its          position                     ihe plote is then held firmly. Wh"n                          ,on,d, ?r^dl,igrL crosrng the plote holder, core should be token to see thot





          9. Removing the ground_gloss frome

the sheoth runs correctly in the two side grooves ond thot  itis thrust for enough jnto. the groove on the rower norrowside. lr musr be [erfecily fioi b";;r;'o"sheorh which isbuckled or bult^["?I sir; rii" i"-JiiTi.ritv'in crosins ondmoy scrotch the plotes.
  The plote holders,hoye springs,^                           on the interior of the bock                           'proresby meons of which the      ore pr"rr"J ,goi"it"ih;
                                                               r5

cotches. The plote lies strictly in the focol plone when the                'thissorinossonnosings TUIIilfulfilfulfil Tnlsthis purpose.purpose.ourpose. ToTolc  cvoidqvoic  blurred pictures it  is
thereTore odvisobli    especiolly with new slides    to  liftthe springs o  little.  -                             -
  Loodinq of the plote holders should only be done shortly
before thl comerci is to be used. lt is not odvisoble to leove
plotes in the ,plofe holders for ony length of time. Chemicol
bction tokes irloce ond the sensitlve moteriol suffers.
   lf the comero is not to be used for o time, remove the
plotes fro,m the plote holders ond store the plote holders
witn the sheoth bntirely withdrown. This ollows the velvet,
which forms the light trop, to rise, ond the plote holders will
be obsolutely secure ogoinst light.
lnserling rhe Plote holders
  Slip bock the bolt on the top ond pull out the focussing-        rlscreen frome (fis.9). Insert the plote holder in its ploce
                                                                                                                                                                                                                                                                                                                                            Iwith the sheoth tuJned towords the lens. Now turn the cotch
21 bock ogoin, ond, ofter moking sure thot the lens is not
open, pull- oui the sheoth of th; plote holder, the cotch
pieveniing the plote holder itself from being shifted.
    It is o mistoke to pull oui the sheoth only so for_thot it iust
uncovers the plote dnd remoins in the light-trop. The -sheothshould be pulied riqht out. This is becouse the hrost effective
light trop is formed by the velvet pi.le qf thg plote holder
c5ming into contoct wiih thot on the bock of th6 comero.
The use of Colour plotes
  Colour pl,otes ore inserted with the sensitive side owoy
from the [ens, gloss side towords the lens, ond the block
cord supplied' riitn the colour plote is in contoct with the
sensitive side.
 To compensote for this difference of focus the ground'
oloss musi be withdrown ond inserted gloss-side towords
                                                ground-glossihe lens. Focussins hos to be done by- theonlv, ond not bv tle scole. For oll colour-plotes, of course,
o sp'eciol filter is'required, which is supplied by the respective
mokers.

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 Closing the Comero
   Before                the com.ero, every port of the comero hqs            .closing to be in its normol position:
  l. The double extension must noturolly be r,eturned to its
   usuol position, ond the smoll lever which locks the focus-
   sing knob, must olso be within the bosesoord.
 2. The lens must be in the centre position os indicoted by
   the dots on the rising front being' next to e,och other, ond
   the dot ond the pointer being together on the cross'front
   movement.
 3. The frome finder must be swunq round towords the lens
   stondord over which it fits when not in use.
 4. The brilliont finder must be in the upright position.
 5. The folds of the bellows should be coriect    ke sure
    l,h"V,       ore not bent in, or they will become out of shope in  ,   the body.
    lf everything is in order the finger grips ore pressed
tggether by the thumb ond fore-fingeiof the'right hohd, ond
the. front, i. e. the stondord corrylng the leni, is corefuliy
pushed home in the body. lt is v6ry importont thot the
stondord is.pushed home os for os it will go, os otherwise
the struts wJ'rich outomoticolly become lockej whitst the front
is extended, will not be reieosed. The oction of the self-
locking,struts prevents the runners of the boseboord becoming
buckled or domoged. The bellows, of course, fold themselves
ond the 'brillioni finder olso foids up when the front ispushed home.
  The comero is now held with both honds, so thot the
thumb con press down the side struts l4 (fiq.3)'enoblino the                                                        "boseboord to be reiurned, when the cotch will hold it.
  Although voigtlonder comeros ,ore substontiolly built you  ,should not torce ony port, os the comero is on instrumentof precision which necessitotes correct ond intelligent
hondling.
Sundry Hints
  In time the instrument will occumulote dust which noturoliy
will odhere ,to the lens. This is e,osily removed with o cleon
                                                          l7

hondkerchief which hos olreody been through the wosh ond
 hos no dressing in  it.
  In colder clim'otes the chonge of temperoture between
outdoors ond indoors is consideroble ond very often results
in the steoming of the lens. lt is best then to woit until the
 moisture hos opporently disoppeored from the lens ond then
proceed to wipe lightly with the hondkerchief. In very bod
coses it moy hoppen thot olso the inner surfoces of the
lenses moy collect moisture, in which cose corefully unscrew
the two holves of the lens from the shutter.
  On no occount must ony ottempt be mode to unscrew the
seporote ports of the front ond reor lens elements for it  is
beyond the skill of even ,on experienced omoteur to put
them together ogoin so perfectly os to restore their originol
opticol quolity. Anyone who tries the experiment in dis-
regord of this coution will discover to his chogrin the extreme
precision with which the ossembling of o lens of this kind
is done.
  Very often dust collects between the folds of the bellows.
A good comel hoir brush will rolTroV€ oll this dirt. This is
best done by removing the focussing screen, opening the
shutter, unscrewing the lens cells ond then opplying the
brush to the inside of the bellows. By blowing ot the some
time through the open shutter, the dust is reodily dislodged,
especiolly if the outside of the beilows be simultoneously
topped gently with the finger.
Some Useful Accessories
  The following occessories ore not obsoluiely necessory,
but will greotly improve the finol results.
Plote Holders
  Eoch comero is supplied with three plote holders. When
going on o doy's trip six holders, on longer iourneys twelve
moy be required. These con be obtoined of ony time. Only
Sor7: So mony holders for Voigtlonder Tourist Comero
                411+" x 31ll' or 5112" x 31/2" with normol edge.31lz" x 21lz" ,
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 Film Pock Adopter
  on tours in countries where no dork rooms exisi ond fresh
            ploies ore not ovoiioble, the film pock is on lupplies of importont ond useful occessory. one film pock weighs oniy o   .feur       ounces, ond they con be reodiiy'looded lnto the
 odcpier in doylight. Core musf be token not to lood in brilliont sunshine, but in the shode.
  when ordering                     Film Pock Adopter simply soy "Film pock                     .o Ad_gpt9
                  ^f         or Voigtlcrnder Tourist Com era  3ilr,i X2'l;,, ,4rlo,)1.lli' or 51lz"Y.31lz" wilh pormOl edqe".
                            Yellow Filters
                           Mony omoteur photo-
                             grophs ore unpleosing
                          on occount of such de-
                                        ects os bod skies, block
                              lowers in o meodow
                                 scene, grey   f ruit blos-
                              soms       o  white                                       ,ogoinst                                        sky, gloringly white eyes
                              or pronounced  f reckies
                                   in o portroit.
    lf you wont to obtoin the noturol effects of clouds, flowers
g,nd londscopes you rnust use on orihochromotic bloJ" or.tilm. Ihe some. oppiies to getting good renderings'of blue
eyes, blond hoir ond coloured cloth-ing ond to trSduinq the
gppeoronce of freckles. But in using iuch plote or filniit  isindispensoble to employ o good yeiiow filt'er on the lens.
  Voigtlonder Yellow Filters ore stoined "in the moss" thot
is, no gelotine is used ond fitting e_xoctly cny VoigtlonJ",lens,, org,.luppliep-                               For o'rdinory exposures                          _i.1 t*g .grodei.use the "Moment",.,Fillg, Qxl, to ochieve o more prominent
effect the "Normol" Filter t4 Xt. When ordering pt.Lr" .foi",-rlq.s,                                                       'H;li;;comero ond comero size, [e,ns {Helior F/3.s]
lkopgr F14.5, FocoI length'(41le,',4ilo',,Sil+,,,L;,6112,'-or-i',)'o,i,Athe density required ("Moment" or 'tNormol').

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Focor Lens
                                   otlochmenls
                                  Tiie focol lenglh of
                              the lenses employed  in
                             the Tourist comeros is
                            the  moximum  for
                             performonce both os
regoros rne ongle ond depth of focus. In mony instonces,
however, it is dbsiroble to use o longer focus os the size of
tf" imoge is thereby, ellorge-d, or olternotively, the some
size imoge con be obtoined from o greoter distonce, thus
obtoining on improved ond more noturol perspeciive for
the eye.
 On the other hond you must work with o shorter focus in
order to obtoin o lorger field on the plote from o fixed
distonce, ond ogoin when working in o confined spoce to
obtoin o picture of o neor distonce.
  The focol length of the Helior onostigmot lens con, how-
ever, be very simply enlorged or shortened os desired by
plocing o Focor lens ottochment in front of the ordinory lens.
These Focor lenses ore supplied in vorious foci, so thot you
con convert your lens inio whot is procticolly o set of lenses.
Enlorging Lenses
For HELIAR F13.5,4'la"  focol length                                                                                                                      '                      .l.3     Focor Lens No.  6 mognificotion obout  X
                        tt                ,t               l,  9        t,          t,   l.4x                           ,l                  lt              It  7        ,t          ,,   l.sx                        ,t                tt               ,l  B       ,,          t,   l.5x                                                             l.B x                        t,                t,             t,  16       t,          ,,
For HELIAR F14.5, 4'la" focol length
                                                                                                                                             '    obout 1.3 X     Focor Lens No. 2 mognificotion                        ,t                ,,             It  4      ,,       ,,   l'sx                        ,t                t,               ,l  3                    t,  17X                                              ',For HELIAR F/4.5, 431q" focol length
                                                                                                                                          '  ion obout 1.3 X     Focor Lens No.  6 mognificof                           ,l                  tl               ,l  9      ,,        ,,   l.4x                        tt                t,             ,,  7      ,         ,t   l.sx                        t,                  lt               ,l  B     r,        ,t   l.zx
20