Nikon F Model 3 Exposure meter User manual

Photoelectric
  Exposure Mefer
               F   for Nikon
       MODEL 3





      ilrPPolr KoGAKU K.K.@

Photoelectric Exposure Meler for Nikon F
ll
          The meter is designed to ottoch onto the top of
         the Nikon F ond to couple to both the comero's
           shutter speed diol ond the operture ring of Nikkor-{         Auto lens. When the meter is pointed to the subiect
 I         to be photogrophed ond one of the needles is brou-
         ght into coincidence with the moving needle pointer
        by turning the shutter speed selector on the meter
rilll''I         ondf or the operture ring of the lens, the correct
          exposure  is set outomoticolly, reody for photogrop-I          hing the scene.
   ,-Jor        incident light reoding qn oPctl plote is used'-----'--
        A booster (omplifier) is ovoiloble os on occessory
        ond increoses the sensitivity of the meter by 3.2
            times.

iJ
liliIi        Mounting the exposure meler
            Before mounting the exposure meter on the cqm-
          ero, bring the slider on the bottom of the meter to
          the center,ond close the operture of the lens down
         to F:5.6 by turning the operture ring of the lens.
          The shutter speed diol on the comero is to be set
          ot ony speed other thon T.

l-

       Using the meier
        O.  First set the ASA diol on the meter by meons of
          the pins, so thot the ASA speed of your film me-
            ets the indexV. When using <r filter, turn the
        ASA diol, until the ASA figure comes opposite
           the filter foctor index of the film to be used.





                              Zero point Semi- tronsPorent
              Fig 4
                          rowords the. sulieclIq b:^ pho:     __!._lgry!S--qer::.g_         togrophJ.   f n. white needle pointer in the top
         window will move to ond fro ond settle of o
          position,ondeitherthesi|verorgoIdenforked
           need le o PPeo rs'
           Then foilow the white pointer with the silver (for
      ,brightlight)orgo|den(fordirn|ight)need|eby
          turningtheshutterspeedse|ectoronthemeter
           o,ndlor the operture ring gn the lens, until the
            pointer enters in the needle fork (Fig' 4)'  Now
                itt.  correct  . exposure hqs been set reody for
            photogro Phing the scene'
        coution  t
                                              ther< ) is o semi-trons-          At on end^, of^f, +hathe wwindowr
          porent portion with <l proiected port (o) in Fig' 4'
                It mighr be noticed thot neither golden nor silver

needle should be followed into the semi-trons-
   po rent porf ion, ond only the golden but not the
   silver needle should be followed in the oreo of
   the proiected port. A smoll ciiculqr hole in the
   portion indicotes the zero point.
    When the shutter speed required is slower thon
     I second, the shutter speed selector will stop ot
  B.  In this cose, the correct shutter speed is 2 se-
  conds or slower. No slower shutter speed thon
  2 seconds is indicoted in this exposure rneter.
   Boosfer(for dim
  When the booster is
used on the side of the
meter (Fig. 5), set-the
ASA figure being used
of the index mo rked
lqjl    tn this cqse use
the golden needle.               Fig 5
   Incidenf light reoding
    lf the meter is used for incident light reoding, the
opq I plote should be ottoched in  f ront of the meter
by inserting verticolly in the direction indicqted by
the orrow. Meosuring proceeds in the sqme woy crs
for reflecting light described obove. tf the booster
is used in this situotion, do not forget to qttoch in
front of the boosterwww.butkus.usfhe other opql plote which  is
ovoiloble with the booster.

Adiusling zero position
  On the bottom of the meter housing you will find
o smoll screw heod (fig.6) which serves to odiust
the zero position of the meter os follows:
  Cover the  f ront window completely ond see whe-
ther the white pointer needle rests on zero.  lf   it
does'nt turn the scre\M heod slightly left or right with
o smoll screw driver, until the resting position of the
white pointer needle comes precisely to zero.





                                 Fig 6
  Core qnd keeping
  Avoid ony shock ond serious vibrotion os for qs
possible in corrying or using. Don't leove the ex-
posure meter in the sun, ony more thon you cqn
help, to ovoid excessive light ond heot effect.
Don't dismount the meter, os it is likely to impoir
its occurqcy ond efficiency. After use, cleqn tho-
roughly ond store it in o d ry shody ploce.

]IIPPO]I KOGAKU K.K.
            TOKYO JAPAN

                     www.butkus.us
Printed in Jopon                  FA320t (6t. t. G) A