Auto Graflex User manual

DIRECTIONS FOR OPE,RATING
thc AI.ITO  GNAFLE,X
             3 Z x 4 t 4 , 4 x 5 a n d 5 x 7





FOLMER & ScHwING DBpARTMENT
EASTMAN KODAK CO"    ROCHESTER, N. Y.

7
  Directions   f or Op erating
 The Auto Graflex Camer^





              M-
               D-
              H-
              G=-

               B-
              P-




   FOCUSING  Releasethe spring catch L, and raise the cover, which
                  automaticallyextendsthe Focusing Hood.  Rack the
    lens out with the focusingpinion S, which causesthe lenscover to open
     instantly,exposingthe lens.

   SETTING  THE MIRROR   Pressdown the lever H until the mir-
                                      ror locks in focusinS,position.

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THE CURTAIN   The shutter curtain contains 5 aperturesranging
APERTURES      from full opening o to 'A of an inch. when the
                       letter O appearsat F, the shutter is wide open.
 The other apertures,1'/, %, % and %, follow in rotation at F as key
A is turned to the left.

THE SHUTTER   The metal plate, attachedto the FocusingHood,
SPEED PLATE    givesthe approximateshutterspeeds,in fractional
                    parts oi seconds,obtainable with the various
 combinationsof curtain aperturesand tensionnumbers.

SETTING  THE  Push down lever H.  Slide the bar D to the left,
SHUTTER        exposing I,  indicating instantaneousexposure.
                Wind the curtain by turning key A to the left, until
the required aperture appearsat F.   If the curtain is set at a smaller
aperturethan required,releasethe curtain by pressingbutton M back-
ward until the proper aperturenumber is registeredat F.

CAUTION   A safetylock preventsthe *indirrg of the curtain before
             the mirror is set in focusinAposition. This preventsfog-
€in€ of the film, makingjit necessaryto set the mirror before rewinding
the shuttercurtain

REGULATING  THE   Tension on the curtain is regulatedby turn-
SHUTTER  SPEED     ing the milled head   to the right until the                                    F
                        required tensionnumber appearsat G. The
numbersrun from 1 to 6-the  highest number indicating the greatest
speed.  If the tensionnumber is set at a higher tension than required,
releasetensionof spring by pressingescapementP, up and down, until
the proper tensionnumber is rep,isteredat G. Example: for an exposure
2={sof a second,registercurtainaperture/a at F, and tensionNo. 5 at G.

INSTANTANEOUS     After the shutter has been set, and the ima$e
EXPOSURES        on the Ground Glass FocusinSScreen ProP:
                         erly focused,the exposureis made by one
g,entle,downward pressureof the releaselever, locatedon the forward,
left-handside of the camera body.  The pressureon the lever simul'
taneouslyreleasesthe mirror and curtain.  Slowinstantaneousexbosures
of about f secondcan be made with the curtain set at O (full opening),
and tensionNo. 1.  Pressureupon the shutterreleasecausesthe mirror
to rise just before the crtrtaindrops, closin$the exposin$,aperture.
   When making slow instantaneousexposuresthe camera should be                                             tJproperly supportedon a table or tripod                                                                                   ,i

TIME EXPOSURES  Pressdown lever H, and slide the bar D to
                      the  right, exposing T,  indicatin€ time ex'
posures. Wind  the curtain until the letter T  is reS,isteredat F.
After focusing the image, releasethe mirror, and commence the
exposureby a gentle,backward pressureon button M.  At the expi-
ration of the requiredtime, terminatethe exposureby a secondpressure
on button M.                                                                                                                                                                                                                                                                                              ,'j'

                                                                                                                                                                                                                                                                                                                                                              lil
VERTICAL  PICTURES   Vertical picturesmay easily be made by                     . ii,
                                      first settin$ the shutter, and accurately
focusingin horizontal position, and makin$ the exposure with the
cameraheld in vertical position.

ACCESSORIES   All Graflex Attachmentswill interchanSewith the
                  Plate Holders on Graflex Cameras. The Graflex
Plate Ma1azine is designed to carry 12 Glass Plates or cut Films in
metalsheaths;the Graflex Roll Holder takesthe new EastmanGraflex
Film, consistin{of 6 exposures;the Graflex Film Pack Adapter takes
the Premo Film Pack.


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SUGGESTIONS
        Find the subjectgroup, and the exposure for movement at righi
     anp,lesto camerawill be found in the squareon the line of " distanceof
     object" and under "focal lenAth of lens."
                      Example:
                              Subject                     Motor  Boat
                              Distance                   50 Feet
                         Speed of Subiect          30 Miles per hour
                       '                     Fbcal  Lengttr-of Lens         .  6+'
                            Exposure
               '
       The shutterspeedsgiven are necessaryto stop the motion. The lens
     opening must be regulatedto meet the prevailinA light conditions.
        For bright days it is suggestedthat Stop F.8 be usedwith exposures
        r Fr to cto; F.5.6 with exposuresc*o to #o;  F.4.5 for exposures    to                                                                              "lo            , otnn.
      On hazy or dull days,with same exposure,proportionately larger
     lens opening,sshould be used.
              It is not advisableto operate the shutter at a higher speed than is
     necessaryto stop movement of the subject,thereby S,aininSthe advan-
     tage of full exposuresand the ability to use smaller lens openings,
     which will give greaterdepth of focus.
       To decreasea given shutter speed % for movement at'45 degrees,
      or % for oncoming subjects,use the second lower speed on Graflex
     exposureplate for I  less,and the fifth lower exposuref"or % less.
                      Example:        '333
                                          680
                                   Right angles-*
                                                                fi$
                           5 degrees;73'lesst*
                                                           !!3
                      Toward camerai zz'sless-* ?3|
                                         160
L"
It---       FOLMER & SCHWING DEPARTMENTi    EASTMAN KODAK co.                ROCHESTER,   N. Y"

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