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Beseler Topcon RE Auto User manual

User manual for Beseler Topcon RE Auto. 59 pages in English. Read the original PDF, download or print a copy without registration.

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Brand
Beseler
Model / document
Beseler Topcon RE Auto
Document type
User manual
Language
English
Pages
59
File size
4.1 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 2 · Read text
7
                  ETECTRIC-EYEPICTURE.TAKING
             t.   Sel fifm speed (ASA 25  to 4OO or DIN 15 ro  27).
         2.  Set shutier speed (l/8  to l/5OO  sec.).
         3.  Set operlure  ring  ro AUTO.
         4.  Advance  film wlndlng  lever.
         5.  View-focus  fhrough  rhe lens, ond check operture  reodlng.
         6.  Press shutter  releose  buflon.

                         IMPOR,TANT
               l.   Don't  touch  the  surfoce   of  fhe   lens,  mirror,   eyeplece,   os  well   qs  exposure
            window.
          2.   Stroke  the  film  winding   lever   oll  rhe  w.ty   - untll     ll  stops.
          3.   Wolt   untll   ihe   shutier   oction    is completed   before   stroklng   the  film  wlndlng
              lever.
         4.   Cover  lhe  lens when   not   in  use.
          5.   Don'l  force  movements   bul  re-reod   Inslructions   once  more.
          6.     lf  your  HANIMEX  TOPCON  RE AUTO  Gomerq  needs  repoir,   don'l  do    ir  yourself
             but  contoct   the  neqresl   outhorized    deoler.
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F
    HANITUIEXTOPCONREAUTO  But,cqmerobesidesolso incorporqtesthese  bosic ollrequirements,the complicotedthe
                                                                                  picture-tokingcompletely                                                           mqke                                                                            thot                                                 mechonism    CAiIIERA                                                                       os :-                                                               such                                                          outomotic,
         Congrotulotions,on your choice of  the HANI-                                                                                                          l.  Fully outomqtic insto'ntre-opening lens dio-       MEX TOPCON RE AUTO comero which hos                                                    phrogm oction-f or  holding the  lens  ot
        been designed by our engineers ond opticol                                                           wide operture, for view-focusing eose, but           scientists to  give on  ideol  cqmero  fulfilling                                                               stopping  it down outomqticolly to ihe se-          the following bosic requirements:-                                                                  lected operture for  the shutter oction ond
                  l.  Single lens reflex-for   viewing ond focus-        then  re-opening   it  once more  to  wide
              ing of  the exoct subiect imoge  os  it  will         operture.
            be coptured on the  film.
                                                                       2.  Quick-os-o-wink mirror  oction-which,   in
            2.  Electric-Eye qutomotion-for   outomoticolly        coupled  oction  with  the  outomqtic  lens
              setting the correct exposure to  the comero        diophrogm oction, swings the  mirror up
             simply by  pointing  it  ot the subiect.            qnd out of the woy for shooting qnd then
           3.  Complete   lens   interchongeobility-f  or        snops it down once more, quick-os'o-wink,
            chonging from the stondord to  the wide-          for  view-focusing.
             ongle or telephoto os the requirements of       3.  Single stroke film winding  lever  oction-
              the picture moy demond.                          not only qdvonces the film one frome, but
            1.  Superior UV  lens cooting-for   producing        qdvonces the  exposure counter, chorges
               crisper block-ond-white shots ond true-to'          ihe shutter ond sets up the outomotic lens
                    life  color  pictures.                            diophrogm qction.

                     I

                                                         ,,o;$S"                                                                       JS
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1.  Automotic  re-selting  odditive  exposure     exposures, the  person who wonts o comero
    counter.                                       with  o  choice of  wide-ongle or  telephoto
                                                 lenses, which ore not ouxiliory lenses or which5.  Automotic pop-up rewind button.
                                                leove behind some component ond merely ex-
And, os on odditionol bonus, the comero olso    chonge the front elements, to the person who
h o s : - -                                              would iust rother set exposures qccording to
l.  Complete electric-eye outomotion with oll     experience,-'becouse the comero  is  not  o
   interchongeoble lenses.                      simple quiomotic cqmero but o well-built ond
                                             designed comerq which will sotisfy even ihe2.  Speciol UV  filter effect on oll interchonge-
                                        demqnds of  the odvonced omoteur.   oble lenses.
                                             White operofion is very simple, moy we sug-3.  Aperture scole visible in finder, even with
                                                 gest thot you reod  the  instructionsthrough    electric-eye outomotion.
                                                    corefully so thqt you fomiliorize yourself with
4. Mqnuol over-ride of  electric-eye qutomq-                                                                  its working ports before you even lood  film
    tion for  shutter coupled exposure settings                                                             in the comerq.
    or complete freedom  in exposure settings.
In other words, the comero is the ideol fomily
comero becouse  it  con be used by  every
member of the fomily, from the person who
only wonts on outomotic comero to toke core
of  oll exposure setting problems, the person
who wqnts q  built-in exposure meter coupled
to  the comero for some freedom to odiust




                                                                                                                               ;cs
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SPECIFICATION

Lens:
       UV Topcor 1 z 2 t-53mm 6 element stqndord  lens.  Fully outomotic instont re'opening
          lens diophrogm.  Stroight helicoid focusing from 70cm to infinity.  Boyonet mount lens
         interchongeobility of complete lens.
        A p e r t u r e sz  f 1 2 , 2 , 8 , 4 , 5 . 6 , 8 ,     l l ,  1 6 o n d 2 2 .

Shutter:
       SEIKOSHA SLV behind-lens tYPe'
'      speeds: B, 1,112,114,ll8, 1115,1130,1f6o,11125,11250& l/500 sec'
        MXV-switch (for M ond X settings flosh synchronizotion ond self-timer).

Finder:
         Fixed eye-levet pentoprism finder, with 0,75X  imoge (stondord lens), ond 34.5X23mm
           finder screen.                     '
         With TOKOBRITE fresnel lens plote ond micro-prism focusing spot.
         Meter needle ond operture  scole, indicotes operture reodings.

Exposure:
  AUTO-Electric-eYe outomotion'
       Ronge: EV 5 to EV 18, with ASA 100 fflm'

 3
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         Film speeds: ASA 25 ro 400 (DlN 15 to 271.
        Shutterspeeds, 118to l/5OOsec.
  COUPTED-Shutter coupled exposure setting.
        Ronge: EV 5 to EV 18, with ASA 100 film.
        Film speeds: AsA 25 to 400 (DlN 15 to 271.
         Shutter speeds'  118 to l/5OO sec.
  tVIANUAt-Complete freedom in opertures/shutterspeeds.
       Ronge: EV 2 to EY 18, with ASA 100 film.
        Film speeds: ASA 25 to 400 (DlN I 5 to 271.
         Shutter speeds:  B,  I  to l/500 sec.

Film Winding:
                     l g0' singlestroke.

Other  Feqlures:
        Red  worning  oreo  indicoting  outomotic  exposure  is  not  possible (shutter moy  be
         releosed).
        Wink mirror system (instont return nirror  oction).
         Automqtic pop-up rewind button.
         Fixed occessory shoe.

Slze & Weighr:
         With stondord lens:  l36mm X 93mm X 84mm; 840 groms.





                                                                                                                                          ,           xr*""                .   ^r'*i*,:..
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Digitally signed by Mike Butkus               Mike                  DN: cn=Mike Butkus, o, ou=Butkus.
                                                                                                 org, email=mike@butkus.org, c=US
                                                                                           Date: 2026.01.13 16:38:44 -05'00'                Butkus





                   NOMENCTATURE
O  Film winding lever     @ Rewind knob          @ Shutter speed ring
@ Exposure counter scole    @ Rewind crqnk          @ Aperture ring
@ Exposure counter index    @ Shutter releose button     @ Depth of  fleld scqle

5
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@ Rewind button       @ Film speed index      @ Film cortridge shoft
                                          focking lever     @ Film toke-up spool slit               'scqle      @ Lens@ Film speed
@ Film speed odiustment cotch @ Tripod socket       @ Film toke-up  spool  serrqted
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   flonge               @  Bock cover lock         @ trtxV-switch
@  fitm tronsport sprocket     @  Bock cover colch        @ Bottery co'er
@  film pressure plote        @  Flosh socket
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Venmo @mike-butkus-camera  Ph. 2083
PayPal Name  Lynn@butkus.org      www.PayPal.me/lynnbutkus
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GORRECTEXPOSUR.E                               l.  Electric-eye outomotion.
One  of  the mosi importont foctor  for toking      2.  Coupled exposure setting.
better  pictures is correct exposure, which  is                                                            3.  Free exposure setting.
the relotionship between-
 l.  The shutter speed, ond                                ETECTRIC-EYEAUTOMATION :
2. The operture (lens opening), os decided by
                                             Presuming thoi  ihe  film is olreody  looded  in3.  The brightness of the subiectl ond depend-
                                                   the comerq ond  the  film speed set  to  the    ent on
                                            comero, the only qctions required for  toking
4.  The sensitivity (spcedl of  the  film looded     pictures ore:-       ?
    in the cqmero.
                                                                                             l.  Set the shutter jleea  ring (71 to one of
In other words,  it  is importont to be oble to         red-colored speeds t/SOO to  l/8  sec., by
correctly iudge the brightness of  the subiect,        revolving the  ring until the required speed
in order  to determine the correct operture to            is opposite the index.
be used, becouse film speed is pre-determined
                                              The shutter speeds will click-stop into ploce.by the  film used ond shutter speed  is, more
often thon not, decided by the oction of the       Use the shutter speed guide for  choosing
subiect.                                               the most suitoble speed for  the lighting
In the HANIMEX TOPCON RE AUTO cqmero         condition or  oction.
three methods of setting the correct exposure      2.  Set the operture  ring  (8) to AUTO, which
odlustments to the lens ond shutter ore pos-           will set the electric-eye system into opero-
sible-                                                          tion.

9

      4*$  *
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hove the effect  of  moving the exposure
                                                   needle towords the middle oreo,  in both
                                                   coses, where the picture con be token.
                                         When revolving the shutter speed ring, in
                                                        the  obove  instonces, do  not move  the
                                                         shutter speed scole outside the   I /500  to
                                                      1l8  sec. ronge.
                                              The shutter con be  releosed even when
                                                        the needle is in the red oreos so the posi-
                                                              tion of the needle must olwoys be checked.
                                                Of  course,  it  is token  for  gronted  thqt the    www.butkus.us
                                                            film winding lever  is  olso odvonced, os well3. Check the  operture  scoles seen on  the
                                                os view-focusing being undertoken, before the     lef t border  of  the finder ond   if  the  ex-
                                                     shutter is releosed.   posure needle  is not  in the red worning
   oreos ond  is sotisfoctory, press the shutter                                 COIIPTED EXPOSURESETTING:    button (61, ond the picture will be token.
       lf the exposure needle is in  the top  red    When the subiect hos too  much controst, or
    oreo, the picture  will be  under-exposed,     the bock-light is brighter thon the front-light,
    while,   if   in  the  bottom  red  oreo,  the      or   if  you  wont  to  toke  s close-up reoding
    picture will be over-exposed.  lf the former,     ond then move bqck for  the  shot, or  other-
    revolve the shutter speed ring to the left,     wise wont  to  odiust the operture setting to
    ond,  if  the  loter, to the  right, which will     toke  into occount possible over- or under-ex-

 il
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 posure on electric-eye outomotion, try coupled     eye outomotion, but  within the ronge  l/500
 exposure setting :-                                      to  l/8  sec., ond  ffnd the  right combinotion
  l.  Set the shutter speed to one of the red-      of  shutter speed ond operture.
    colored shutter speeds, i.e., from  l/500  to     Coupled exposure setting is suitoble for  ihose
         I l8  sec.i the  some  os  for  electric-eye     shots in which-
    outomotion.
                                                                                                                               l .  The bockground  is very  light ond covert
 2.  Toke  the  operture  ring   off  AUTO,  by         o greoter oreo thqn the moin subiect of
    revolving   it  to  ony  other  setting on the          interest, which is olso dorker;  becouse the
     ring.                                          exposure reoding will be dominoted by the
                                                               lighter bockground ond  the moin interest3.  Point the comero lens ot the subiect ond
                                                                       will be under-exposed.  For exomple, shots    reod the operlure setting indicoted on the
                                                       ogoinst  distont  scene, or  ogoinst snow-    operture scole in the finder.
                                                    scopes, etc.
4.  Tronsfer the operiure reoding to the oper-
                                                2. The opposite  of  the  obove,  such os  in    ture  ring,  i.e., revolve  the operture ring
                                                          night  clubs, circuses, etc.,  in which  the     until the some operture  is opposite the
   index  (l  I ), or modify  it ond then tronsfer         reoding  will be dominoted by  the dorker
                                                 bockground ond the moin interest will be      it,  if  this is pref erred.
                                                   over-exposed.
5.  Press the shutter releose button.                                               3. The moin subiect is bock-lighted, becquse
Incidentolly; if the exposure needle  is  in the         the subiect's foce  will  not be  illuminoted
red worning oreos, revolve the shutter speed        by the  moin  light ond  will be under-ex-
ring, in the some monner noted  for  electric-        posed,  if the reoding  is token for the full

                                                                                                                                                t 2
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subiectoreo.                               3. Conirosty subiect:   First decide whot  ef'
                                                              fect you ore looking for  in the finol picture4. The moin subiectis in  the shode, becouse                                                ond toke on exposure reoding of the por-   the reoding will ogoin be  dominoted bY                                                              tion which interests you the  most, letting   the surrounding light  ond   will  lhus  be                                                        the  controsty  portion  (lighter  or  dsrker
   under-exposed.                                                          portion) get  lighter or dorker, os the cose
For  the  obove  shots, qs  well  os  for  other       moy be.
shois, the exposure raoding should be token
                                                      4.  Inoccessible subiects :     lf  the subiect is tooos follows:-
                                                                 for   off,  toke  on exposure reoding of  o
 l.  Londscope: Shield ihe comero toking lens          similiqr subiect (i.e., some iexture ond light'
    (34) trom  the  light  reflected by  ihe sky          ing condition) ot close dislonce.
   ond  point   it  so  thot   it  will be toking o
    reoding of on oreo hoving  less sky fhon      5.  Bock-lighted subiect:  The best method  is
                  'overoll                      scener'becousethe sky          to move in ond toke o close'up exposure    the generol
     is much brighter  thon  the generol scene        reoding of  the front-lighted  subiect oreo
   ond  if too much sky is included the overoll          only, using core to see thot the bock-light
    effect  will be over-exPosure.                    does not effect  the  reoding.  Otherwise,
                                                    modify  ifre exposure reoding token ot the
2.  Subiect  ogoinst  the  open  sky:  When                                                         picture-toking position 3 or 4 times to foke
    shooting oirplones, flogs,  buildings,  etc.,                                                               into occount the  excessive controst  be-
    ogoinst on open exponse of  sky, toke on                                                 tween the bock-light ond the  front-lighted
    exposure reoding of  o  similior obiect with                                                        oreo. '    the  light striking  it  ot the some ongle os
    the subiect ond nodify    it by 1/2 stop less.     6.  Portroit: Move in close ond toke o reod-

 t 3
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ing  of  the  foce  oreo  thot  should stond            be unusoble even'when the exposure
out  in  the  finol  picture.    lf  controst  is            needle is not in the red worning qreos.
extreme, between the high-lightsond shqd-             This is especiolly when o fost film is
ows, toke o reoding of both portions ond                                                used of  q  slow shutter speed, or ooveroge  it,  if you wont both portions, or
                                                         slow'film used ot the fostest shutterolherwise toke o reoding of the inteJesting
portion ot obout 4 inches or so.  See thot            speed. The following combinotions of
the comerq's shodow  is not cost on the              shutter speed ond f stops should never
oreo being reod.                                  be relied upon for  setting exposure.
N o t e :
                                           ASA 400  film    f 12 &  l/8  sec.(l )  When using the f/3.5  wide-ongle or
                                           ASA  50  film  fl22 &  l/500  sec.      f/4  telephoto lenses, it is not possible
                                          ASA  25 film  +116 A  l/500  sec.      to  toke  shots  ot  lorger  opertures
    thon  the moximum operture  of  the             ( 3 ) To use o shutter speed slower thon
     lens ottoched to  the comerq.  Thus,                                                                     l/8  sec., use the operture reoding for
         if  the exposure  needle  indicotes o                                                                     l/8  sec. in order  to toke o reoding.
     reoding  of    f l2  or    f 12,8,  etc.,  the           Then re-odiust, by stopping down the
     shutter speed ring should be revolved                                                       lens diophrogm by the some number
     to o slower speed, in order  to bring                                                               of  steps os  the  exposure time  is
     the  needle within moximum opening                                                    increosed, os follows :-
     of the lens used.
(21 When using film other thon ASA 100             S h u t t e r s p e e d I     l l 8 -   l l 4 - 1 1 2 - l
    ond 200, the exposure reoding con             A p e r t u r e l        4 - - 5 . 6 -   8 . . . l I

                                                                                                                                                                                                                              l 4
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FREEEXPOSURESETTING:                   foster speed is needed for movement neorer
                                                          to the comero, (3) q fqster speed is required
Although only full numbers ore used on lhe      for  o subiect moving porollel to the comero,
ring,  it should be remembered thot 500  is     while o slower speed moy be used for move-
l/500  sec., ond   I  is o  full   I  sec. ond thot,    ment towords or owoy from the comero, ond
therefore, the  lorger nunrber is  the  foster      (4) the degree of stopping required will olso
                                              determine the speed to be used.speed, meoning thot the shufter remoins open
only for o t/SO0 sec. durotion during which    The operture ring hos opertures or openings,
time the light pcrssesonly  1f 2 os long os the     colled f/numbers, with  exposure  rotios, os
preceding lorger number ond vice verso ; thus          f o l l o w s : -
if  tighting conditions remoin unchonged, de-     Aperture        2  2.8  4  5.6  8    ll   16 22
creosing the speed will meon thot the operture    E x p o s u r e r a t i o 1 1 4 1 1 2 1   2  4     I   1 5  3 0
will hqve to  be opened  to compensqte for                                          The operture or  lens opening controls the
less light.                                          omount of light thot enters the lens ond posses
The choice of  shutter  is dependent on  the     through to the film plone, by odiusting the lens
lighting condition, os  well  os the  need  for     opening os required.   lt con be seen thot the
stopping oction.  The brighter the  light, the     lorger numbers ore the smqller openings ond
foster the speed thot moy be used, ond vice     vice verso ond  thqt  eoch smoller operture
verso. On the other hond, for  stopping oc-     permits only 112 the omount of  light  of  the
tion, it should be noted thot  (l ) q fqster speed     preceding lorger operture ond thot, therefore,
is  required   f or  o  speedier  subiect, (21 o          if  lighting conditions remoin unchonged, stop-

 l 5
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 ping down  will  ,"0u,-   o  corresponding in-      -but,   besides this, lhere  ore  vorious other
 creose in the shutter speed.                       reloted octions which  oll  toke  ploce  in less
 In other words, if the shutter speed is originol-     thon  l/lOth  of  o second when the shutter  is
 ly set to  l/60  sec.  for    f f 8, then   it must be     pressed, such os:-
 increosed to  11125 ,t the operture is opened          l.  The shutter blodes close down completely.
 to   f 15.6 or  to  l/30   if the operture is sropped      2.  The reflex mirror rises, the film blind opens
 down to  f/  I l.                                                                     fully ond the  lens diophrogm  is stopped
 Exposure settings in this cose will hove to be        down.
 decided by:                                              3.  The shutter blodes open ond  close  (f or
  l.  Using o  suitoble exposure meler,  or,              toking the  picture).
 2.  Using on exposure chort, such os is usuol-     4. The fllm  blind opens, the  mirror  returns
     ly included with the  film, or,                          to  reflex  viewing  position, ond  the  lens
                                                 diophrogm opens fully.3.  Moking your  decision bqsed on post ex-
    perience.                                        5. The shutter blodes open  fully.
                                            The qction of  the lens diophrogm is the result
SHUTTERAGTION:                                 of  the "fully outomqtic instont re-opening lens
                                              diophrogm oction",  while  thot  of  the  reflex
Since oll the UV TOPCOR lenses ore equipped      mirror  is the product of  the "quick-os-o-wink
with the  fully  qutomotic  lens diophrogm  oc-      mirror  oction", both  of which ore required to
tion, the lens opening is olwoys opened qt the     produce the fost  oction  required  for  toking
widest operture  for  view-focusing eose.  This     the picture without loss of imoge.
meons thot  the  lens diophrogm  must outo-
moticolly close down  to  the required opening    When using slow shutter speeds, olwoys woit
when the shutter button  is pressed, ond then       until rhe shutter oction  itffi
open immediotely bock to the widesi operture     voncing the  film winding  lever.

                                                                                           r6
                                                                           's@
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SELF-TIMER:                VIEW-FOCUSING
For the purpose of deloying the octuol shutter    Two other importont foctors for getting beiter
releqse ociion for  l0  sec., ofter  the shutter     pictures ore:-
releose  button  is  pressed, use  the  built-in
self-timer.  After  oll preporotions  for  toking          l.  Correct composition of  the subiect within
the exposure hqve been completed, shift the         the film negotive oreo, ond
MXV-switch (33)  until V  is oligned with the                                                           2.  Accurote  focusing of  the imoge on  theindex, qnd  then  press  the  shutter  releose
                                                             film plone.button os usuol.
By utilizing the self-timer, it  will be  possible     In the HANIMEX TOPCON RE AUTO cqmerq
to toke your own photogroph, or hold light-     both these fqctors ore token core of  by o
ing  equipment  or  reflector,  or  used  it   f or      single system, i.e., view-focusing through  ihe
minimizing comerq vibrotion on the tripod.       comero lens.
                                  Electric-Eye                                  is used,                self-timerEven    when the                                              ex'    cofrrPoslTloN:                              the  correct                 ploce ond           tokesoutomotion
posure  f or  the  lighting condition when  the     Since the  reflected  light   f rom  the  sublect,
shutter is releosed is set to the comero.        which posses through the comerq lens to the
Alwoys  return  the  MXV-switch  to  X-seiting      film plone for toking the picture, is intercepted
when not in use.                                by the  reflex  mirror, which is ploced  in the
                                                              light  poth,  ond  reflected  upwords  to  the
CABTE RELEASE:                                                      finder's focusing screen:-
When using the comerq on  the  tripod, etc.,
use o coble releose screwed into the shutter         l.  Porollox is completely eliminoted, becouse
releqse socket, insteqd of pressing the shutter         the viewing ond toking lens ore the some,
button, os  it  will eliminote comerq vibrqtion.        ond you con compose exoctly  os   it  will

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     be token  in the  pic.ture, ond                    lens, oll focusing odiustmentsore mqde direct-
 2.  The some qreq seen in the finder will be       ly on the lens itself by  revolving the distonce
     covered  in the  finol picture.                  focusing  ring  (tg),  ond  checking the effect
                                               on the focusing screen in the finder. Furthermore, the eye-level pentoprism finder,
 which  reverses fhe  loterolly reversed imoge     The focusing screen hos :-
 reflected upwords by  lhe  reflex  mirror,  gives
                                                                                              l.  A micro.prism focusing spot. the following odvontqges :-
                                                              2.  A  fine focus  ring, oround the spot.  l.  A  right side up  loterolly  correcf  imoge,
    moving in the some direction os the octuol      3.  A  full-oreo  ground  gloss, boosted  by
     subiect, is especiolly voluoble for moving                  f resnel lens.
     subiects.
                                                 Micro-Prism   Focusing  Spot:   The focusing
 2,  Becouse of  the  erect  loterolly  correct     spot in the center is mqde  up  of  numerous
    imoge,  bofh  eyes  cqn be used, one for      microscopic prisms which breok up the imoge
     looking through the  finder  ond  one  for
    viewing fhe generol scene.
3.  Eye-level viewing  olso meons correctly
     loterql  ond  erect  imoges   in  verticql
     formqts.                                                                                                                                                                                                                                                                     ft  ,9ro:   :

FOGUSING:
Since  view-focusing   is  through  the  cqmero             In Focus          Not  in Focus

                                                                                                                                                t 8
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when  it  is noi  in focus so thot the imoge  is     focusing   is  not  correct,  the subiect  will  be
seen indislinct ond  blurred.  When the dis-     seen blurred  ond  indistinctly.  As  with  lhe
tonce focusing ring is revolved ond the subiect     focusing  spot,  revolve   either  woys   of  the
 is qccurotely focused, the imoge in the focus-    optimum focus fo check whethei  focusing  is
 ing spot will be seen distinctly ond shorply.      correct  or  not.
Subiects with  lineor feotures will be  porticu-     Full-Areq  Ground   Glcrss:  The full-oreq of
 lorly effective for focusing becouse the stroight      lhe focusing screen, except for  the  focusing
lines will  look rogged ond  broken up when     spot ond fine focus ring,  is fine ground gloss
out  of  focus but will  be seen stroight when     bqcked by o fresnel plote lens  for obtoining
in focus.                                          o brilliontly illuminoted subiect field from edge-
When  in doubf, revolve the distonce focusing     to-edge,  without  dork   corners.    ln  other
ring   eif her  \^/oys  f rom  whot   is  considered     words, the whole subiect oreo  is olwoys dis-
optimum focusing ond check the  effect.              tinctly seen ond moy be focused on  the  full
                                              ground gloss oreo.
Flne Focus  Ring:   Around the  micro-prism
focusing spot con be seen o cleor  ring which     Focusing is done  in the sqme monner os  for
is mode of  extro-fine ground gloss only.  This     the fine focus ring ond focusing spot.
ring  moy  olso  be  used,  either  singly  or     For speedier focusing, use the   full  focusing
in  combinotion  with  the  focusing  spot,  for     scre€n, combining oll the focusing meons, i.e.,
focusing of subiects withoui  lineor feotures.       focusing spof plus  fine  focus  ring  plus  full
When the distonce ring  is revolved  qnd  the     ground  gloss, becouse  it  will  qlso meon thof
subiect is correctly  focused, the  finder imoge     composition ond focusing con  be  undertoken
will be seen distinctly ond shorply, while,   if      ot the some time.

 t9
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