Asahi Pentax K User manual

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MAIN FEATURES OF ASAHI PENTAX ITK''
  Type              Pento-prism single  lens. reflex, wiih outomolic
                     diophrogm.                                   .111,
  Film size       35mm film
  Picture size     24mm x 36mm
  Stqndord  len'i   Tokumor 55mm f I.8 with'oui
                ond helicoidol lens borrel.
  Focol plcne      r, B, 1, 1/2, 1/4, 1/8, t/i's,ffiso, 1f60,
                                                          1                                                                         1                          /250,  shufter speeds          | / 125,                                                  / 500,'l/1000 sec.'synchionized
                    {or regulor floshbulbs ond electronic  flosh.
                   Speciol "X"  setting on high speed shutter
                      diol for use with electronic flosh.
  Viewlng ond     Viewing ond {ocusing ore done through the
   micro-split        pento-prism viewfinder with its built-in, 4-power
  imoge focusing   mognifier ond imoge-brightening Fresnel lens.
                      Fost, precision focusing is mode eosy by the
                   use of o micro-split imoge circle in the center
                   of the pento-prism. Minor er,rors in focus ore
                        greo tly  mogn ified in  concentric circles to
                     permit ropid, exoct correction.
  Reflex nrirror    Instont Return Mirror copitolizes on the humon
                      eye's imoge retentiveness to oid in photogrophic           Recommended   horizontol  position
                                                          f ollow-through.                                                                                                                         f or comero.
  Film trcnsporl    Single-stroke ropid tronsport leVer ouiomoticolly
  ond rewind      winds film ond cocks shutter. Double exoosure
                      prevented. Film rewind cronk speeds film toke-up.
  Film type guide  Color-coded to oid in film identificotion with
               ASA ronge from 10-800, or with DIN ronge
                                                          f rom  I 1/ 10-30/ 10.

1. Open the bock by pulling out the lock16.
2.  Pull oui the film rewind knobl3 compleiely, ploce the film cossetle into the cosselie chomber23.
   ond push bock the rewind knob. Drow or"rt fhe film lecder ond insert it inio ihe slit of  the
    toke-up spool20.
3.  Turn the film tronspori leverS ond moke sure thot both sprockets22 hove properly engoged the
    film perforotions. Close the bock ond fosten the lockl6.

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RAPID.ACTION FILM TRANSPORT
 l.  Before turning the film tronsport lever8, slowly turn the film rewind  knobl3 clockwise until o
     slight resistonce is felt. This prevents loosening o{ the film.
 2. Cock the film iromsport lever until it stops (180o1. Wotch to see thot  the film rewind knob ouro-
     moticolly turns counter-clockwise, indicoting thot the film is moving  from cossette to  toke-up
      spool.
 3.  Trip the shutter buttonl2 ond ogoin cock the filrn''ironsport lever. Set the exposure counte19 to
    "0" ond trip the shutter button ogoin. The comero is now reody io toke the firsi picture.
   When cocking ihe film tronsport lever {or the first picture, lhe exposure counter outomoticolly
    moves to "l",  indicoting thot the first picture hos been token.





                                                                                                                ....
                                                    tr

L   Af ter the finol picture hos been token, DO NOT open the bock, or oll exposed {romes will be
     ruined.
2.    Erectr,'i;rhe.     film rewind cronkl4 ond iurn ii  while depressing the film rewind releose buiton25.
   When the film hos been rewound bock inio its cosselte, the rewind cronk will lighten os the
    leoder end of the film slips ofi the to.ke-up spqol.
   Open the bock, pull out the film rewind knobl3 ond remove the film coisette. Bend the leoder
   end of the film to indicote thot the film is exposed ond reody for development.

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 l.  Cock the film tronsport lever io   ' wind the film oird set the shuiter. Set the ouiomotic diophrogm
    io ihe F stop desired for exposure. Shift down the diophrogm chorging lever2 ond  . open the
    diophrogm fuily for brilliont, eosy focusing.
2.  Observe the subject ihrough the viewfinder. Turn the disionce scole rin94 u.11; the micro-split
   imoge in the center of the viewfinder is free of distortion ond cleorly in focus. Joke the photo
   by pressing the shutter buiton which stops the diophrogm down to lhe pre-set opening ond
     initiotes shutter oction.
3. The obove diogrom illustroies depth of field. When the diophrogm is stopped down, depih of
     field is increosed; when it is opened wide, depth of field is shollow.  lt is sometimes odvisoble
    io stop down the d iophrogm to determine the effeciive depth of field.

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SHUTTER SPEEDS
 The ASAHI PENTAX "K" is equipped with shutter speeds of l/'l0C0,
 1/s00, 1/250, 1/12s, 1/60, t/30,  1f15, t/8,  1/4,  t/2,     r
 second, plus Time ond Bulb.
ADJUSTMENT OF SHUTTER SPEEDS
From   'l /30 to l/1000 sec. ond Bulb'
 Set the figure 30 on the slow speed shuiter diollt. Lift  the
hlgh speed shutter dioll0, turn ond drop it ot the desired shutter
 speed setting. The shutter speed moy be set before os well os
 qfter cocking the film tronspori lever.
Note thot ot the setting l/1000 on the high speed shutter diol,
 the diol does not foll oll the woy down os ot other high speed
 shutter settings.
For Bulb exposure  :
At the setting B lBulbl, the shutter will be fully open os long os
the shutter button is depressed. When o long exposure is desired
while using the B'setting, ottoch o shutter releose coble with o
locking device to the shutter button.  This will permit o "time"
 ex posu re.
From I second to   l , 15 ond Time  :
Sei the figures 30-l on the high speed shutter dioll0.  Turn ihe
slow speed shutter diolll to the desired slow speed setting.
For Time exposure:
At the setting T (Timel, the shutter will be fully open of ter the
shutter is releosed. To close the shutter, lurn the slow speed
shutter diol to the left.

MUTTI PLE.EXPOSURE
To moke o double or multiple-exposure,  depress ihe
 film rewind releose button25 ond turn the film trons'
 por.t lever. This permits the cocking of the shutter
 without moving the film. Multiple-exposures ore mqde
 by repeoting this Procedure.


                 CAUTION
                                                                                                                                        'I .  At slow speeds, support the comero rigidly or use o tripod
                                      to prevent vibrolion of the comero'
                                  2. The high speed shutier diollo outomoticolly turns when the
                                           shutter is releosed' DO NOT touch the high speed shutter
                                           diol while releosing shutter.
                                  3.  Avoid keeping the comero shutter cocked to protect the
                                           shutter mechonism.

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 FILM       T.YPE.*1F   GUIDE        -
  Use the filmp'fype guidel5 to record the speed of  the
   film looded in the comero. The figures on the film type
  guide ore ASA numbers; or DIN numbers for Europeon
   countries. Usq the white figures for block-ond-white film;
  red figures for color film; ond green figures for  speciol
   film such os positive   , film, copying film, reversol film, etc.
  To check whelher:orl not the comero is looded, turn the   film rewind knob clockwise. lf  it turns  f reely, the comero                         I
   is nof looded.
 PROPER MAINTENANCE                                                           H.
  To remove grit or dirt {rom the comero body, use o
   soft brush or o dry, soft piece of cloth. NeVer use oil
                           ond do not touch
                                     the shutter curtoins.
                                       For the lens,.ond the
                                     reflex miiior,  use           Recommended  verticol positiori
                                     only o sproy of oir                                    f or comero.
                                  or soft lens iissue.
                                    Never wipe the mir-
                                       ror or;ens surfoces
                                    with cloth.


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The ASAHI PENTAX "K" is equip-
ped with FP ond X flosh sockets.
The toble shows which flosh socket
on the comeror which .. shutter
speeds ond which floshbulbs moy
be combined   f or moiimum lomo            \      Shutter                                          \speeos      I                  '|        I        I         I                           I        I                 '|         I
            Unless                   these combino-efficiency.                                                  Flosh \                                                                                              t5    I   -T    2    t  B                                            ns  60 x   I-                                                                      \     r000 soa zsotions                                ihere        sockets                 followed,     ore rigidly
will be o foilure in flosh synchro-
nizotion. Note "X" on the high
speed shutter dioll  l, which indicotes       FP
the highest shutter speed ot which
on electronic flosh moy be used.
Also note thot by using the X
socket ond ony of the slow shutter
speeds 11/30, 1/15, 1/8,  1/4,          x
1f2 ond 1 second),  it is possible
to  use Closs F ond M  bulbs
occording to the following toble.

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INTERCHANGEABIE LENSES
The ASAHI PENTAX "K" ofiers o system of seven interchonge-
oble,TAKUMAR  lenses. TAKUMAR lenses ore widely respected
                                               for                ond omoteur'photogrophers   the professionolby                                                          their fine             fi                                       TAKUMAR                           coveroge of the vorious          The photogrophicresolution.
                                                                                                                                         f occl lengthlenses ore illustroted on poges l6 ond 1Z' With
longer thon 83mm, the subiect imoge is seen ihrough the
viewfinder lorger thon life size'
Regordless of ih'b leirii selected  f or the ASAHI PENTAX "K"
there is never need  ,f or ln  occeSsory viewfinder, ordinorily
 required for ronge-finder type comeros'
When inierchonging lensei, hold the lens by the disionce
 scole ring4 shown in'photogrciphs l8 ond l9'

Super ielephoto lens of
newest design ;.. most ideol
for  spectoculor telephoto-
grophic effects:

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SUPERB TAKUMAR IENS SYSTEM
 Fully color'correcied, cooted lenses o{  highesi        power to conform to ASAHI stondords' which
 opticol quolity ofiering pre-set diophrogm design          ore higher thon ihosg set by JIS (Jopon Industriol
 ond with the stondord lens-mount common to          Stondords). All Asohi-TAKUMAR lenses beor the
 some other single lens reflex comeros'. O'l         seol of the Jopon Comero Ins.pection Institute
 TAKUMAR lenses hove been tested for resolving         which insures the high performonce  stondords'.



   14

l   -;,;        ".           ,

                                                              for exoct onq occurdfe' co-pyin9 with the
                                                                   single lensi reflex'.comero.: Mointoins precise,
These rings mqy be used in combinotion os                                                            porullel come"ro ',poiition, " while " providing
desired. Ring No.  I  is'suited for  moderore                                                                  close-up pgrf ormonce,  imp'bssibl:e' with o' fripod
close-up works os   in copying documents.                                                                           j                   ;                                                      or oiher comero:stond:When oll extension  tubes ore used *itn  the
stondord lens, you  will get o mognificotion
of 1.06 of  llf e size.

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An extremely flexible occessory fcr  ultro-
close-up photogro'phy. Permits use of the
comero's own lens with speciol colibroted
geor shoft. Pictures moy be token os close           By  inserting ihis  mr-
os 2 1/2 inches with siondord lens.  Unit                                               croscope odoptor  be-collopses, shoft folds, for compoct storoge
                                          tween   ihe   comercin smoll cose.                                                                                            .
                                               trbody of  the  ASAHI
                                        PENTAX ond the  mi-
                                               crgscope tube, phoio-
                                               microgrophy con   be
                                                    eosily  ond    simply
                                                     occomplished with  the
                                                     optic  of  the   micro-
                                                               scope.

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   BRIGHT GROUND GLASS
    For moxirnum opticol brilliqnce even in weok
      fight condit,ions or when the lens hos been closed
      lfo o smoll f-stop, the ASAHI PENTAX hos been
     ,equipped with o Fresnel lens beneoth the ground
     gloss.   This lens insures brilliont imoges in the
      ccorners oI the ground gloss with oll interchonge-
    oble  lenses. The illustrotions on this poge
      rindicote the odvontoges provided in ihis superior
     viewing eystem design.


   PENTA-PR.ISM OPERATION
     For improved single lens reflex operotion, the
     ASAHI PENTAX incorporotes o pento-prism which,
     in oddition to  correcting the mirror imoge
      reversol of woist-level type reflex comeros, odds
     the  odvontoge of   simplified verticol  ond
      horizontol comero hondling.



     20

.FRECISION
PROOF OF
                                  {





           @) Mognifying Iens
           @) 'Pento-prism
           @) Ground gloss
                                 lens      @ Fresnel
           (E Reflex mirror
      @ Diophrogm
      @ Shutter curtoins