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Graflex 4X5 Speed Graphic No. 3 User manual

User manual for Graflex 4X5 Speed Graphic No. 3. 9 pages in English. Read the original PDF, download or print a copy without registration.

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Graflex 4X5 Speed Graphic No. 3 manual cover
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Document details

Brand
Graflex
Model / document
Graflex 4X5 Speed Graphic No. 3
Document type
User manual
Language
English
Pages
9
File size
3.2 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 2 · Read text
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       Directlgts lor Operating the
4x5 SPEED GRAPHIC
          No.3





   Folmer Graflex Corporation
          ROCHESTER, N. Y., U. S. A.
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Page 3 · Read text
Directions for Operatlng the
      AxS SPEED GRAPHIC No. 3





                                                                Digitally signed by mike
                                                    butkus
                                                DN: cn=mike butkus,       mike       o=orphancameras,
                                                   ou=29,
                                                    email=mike@butkus.org,
                                             c=US       butkus Date: 2018.02.17 18:24:54
                                                               -05'00'





    Opgn the camera by pressing the concealed spring at the top;
swing the bed down until the spring-actuated side aims lock the
bed in extended position. Grasp the front standard clamp and
draw the lens standard out to the "infinity stop" fastened on the
bed track.
  When the lens is set at the "infinity stop," the white line on the
                 focusing_ pointer,. attached to the base of the lensFOCUSING                standard, should be in line with the infinity mark on
the graduated focusing scale on bed of camera. When focusing upon
objects nearer than 100 feet, the lens is advanced into focus- by


            ANOTHER NEW FEATURE
       This Graphic camera is equipped with an additiongl safeguard for your picture results{ newly
   deaigned focalplane shutter lock. Its use will prevent the accidental release of the focal plane ehutter
  when the front auxiliary shutter is in uEe.
    TO LOCK the focal plane ghutter at the "O" poeition. Dugh todhe rear the nickeled button  located directly beneath Shutter release lever M. This lock automatlcaly releasee ae foaal plane
  shutter ie wound; or, it may be released manually by pushing it forward.
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means of the focusing pinion N, to a point on the focusing scale
representing the distance from the camera to a point focused upon.
The spring-aetuated Focusing Panel L is provided with side shields
                                                  Gr<-rund Glass                                                               Screen.THE          to facilitatepanel recedesfocusingto acceptupon thetheGraphic                                                    Film Holder,FOCUSING TFit              Plate Holder or Film      Adapter. (Graphic                           Jo*              cameras fitted with Graflex back accept removablefocusing'ANEL panel and all of the Graflex film and plate attachments.)
When the Plate Holder or Film Pack Adapter is withdrawn from the
camera, and the curtain aperture O (open) is registered at F,
accurate focus of the full negative size image can be obtained on the
Ground Glass Screen by varying the position of the lens n'ith the
focusing pinion N.
    The adjustable Rising Front affords a means for photographic
registration of vertical lines located above the level of the camera.
A Graphic View Finder R, located on top of the camera, allows the
                     being photographed to be properly.centered.TIIE VIEW llbject             This is accomplished by means of the sighting barFINDERS             and the vertical and horizontal lines engraved on the
finder lens. When not in use t,he finder is folded down and com-

                                                                                                                                                                                                                                                                                           ..apactly closed.                                                                      t
   A wire Frame Finder U is attached to the Front Standard.
Unlike the Graphic View Finder, which is intended for centering
purposes only, the Wire Finder enables the operator to observe the
picture (full size) from eye-level position. A peep sight V is attached
a,s an aid to sighting.
For Wide Angle work depress bed braces and partly close bed,
                       braces to be slipped off the guide pins in therr/rr\D   allowing the
                                  allow the bed of the camera to beI'*XY -.  camera box. This will                                       order to use Wide Anglefrt;N"t   dropped out of the way. In'r'tL'     lenses with maximum efficiency, an auxiliary Wide
Angle bed may be attached to the tracks fitted in camera box,
BETWEBN- A between-the-lens shutter used to supplement
THE-LENS the focal plane shutter provides a range of con-
SHUTTER trolled shutter speeds as slow as one second.
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Page 5 · Read text
When using the focal plane shutter, be sure that the between-the-
               lens shutter is set at "Time," p,nd op9n. Convgrsely,CAUTION             be sure that the focal plane shutter is set at O, full
opening, when using the between-the-lens shutter.
The Shutter Speed-Table T, attached to the camera, gives approxi-
?n a      mate shutter speeds in fractional parts of seconds, r Jr'E f''p                                                                                                              3/4,,    'r  '.   ^Lrtainable with ihe various curtain apertures 0, I%,,SPEED                           i*.,7s and /s, and the tension numbers 1 to 6.
The shutter is set by turning key A to the left, until the curtain
                 aperture indicated on ttr" Speed Plate for aSETTING TIrnLL')'                  certain exposure, is regist-ered at F.  If theSHUTTER                  curtain is already set, so that any one of the
aperture numbers 1Lh,2(,,3A o, rAappears at F, release the curtain
by pressing Shutter Release M until the proper aperture is in position.
The dark slide of Plate Holder, or Film Pack Adapter MUST BE
          IN POSITION WHEI{ THE SHUTTER IS SET.CAUTION               otherwi*u i"j"tious?oggi"s    ptri. or f im will result'                                                      "i
Tension on the curtain is regulated by turning the milled head B to
                                               the- tension number indicated onREGULATII,^ the right until                     the ShutterSpe.e-d Plate for a certain exposure,THE SHUTfY^1*'r\                             The numbers run from f to O-S'EED           appears at G.                 the highest number indicating the greatest
speed, at any given aperture.
   To decrease speed of shutter, release tension on shutter curtain
by pushing escapement P back and forth until the required lower
tension number is registered at G.
When the shutter has been set in accordance with the above direc-
                                                                                  ttE
                                                                                                            flfl       s   i',".|i                                   nttiSi'i?r li,f                                                                  :' J'o rlffi llExPosuRESI N s rAN rAN E o u                                                                                                                     i "ln 3                     Siihe eabr. Rrrruru.
For an Instantaneous Exposure of L1235, use curtain aperture 3/8 and
             tension No. 5. To set shutter for L1295, wind theE1AMpLE                                                                                                                                                                I              tension to No. 6.
Wind or release the curtain until T (Time) appears at F. Set the
                               1;                     at No.                                  the camera upon a rigid                                                                       .                                    lestTIME        tension                support; opeq the shutter with one pressure uponEXpOSURE,s\'                  release M and terminate the exposur-e by a second
pressure
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             DEPTH OF FIELD*
            of Field expresses the ability of a lens to give a sharply defined im-    ?gptbqge of b-ot^h-lear and distant objects. It is impossible-io secure sp,ied and sreat
depth.of field at t-hg sqpe-time,-except with lenses of a very shoit tocuflefieil.
                                                                     focat iengt$-o} ,    Tltu degree of .depth.depends upin the.relation betweei the lens, ltop_use{, and the distance to the subject.
          dept-h of field increases as the focai length of lens and diameter of stop .  Thedecre-ases, and the distance to the subject increases. Focus a lens of known focai
length, upon q                                                        used and objects                           ^ ggilt ,at the lrvRerfobal distance of -the stopbeyond one-half that distance from camera, will be in focus.
                                                     of Focus, 48ft.: Areain focus, )                  !.$-Stop F.lo-Point^.2l  f.t.",EIu-ple::6Yein.from camera to infinity.
     rherorrowingt'bbtglJ#3"?iffi ?tftlfrT?Ef,'r,,,io,'or1/200in.
    STOP F         3.5                                      1t
            494',          9l'                               40,        29'
    lrl?a)=        5t4',           13O',                                      57',           41',
     -lrre       5th'         r44'                                      63',
   F(5       5940         157'
    trl =   -t        6y6"           193',                 r2t,          85',
             7 r40         268'                 167'       rr7,          85',     -l(JolL.
          grz"         344'        268',      2r5'       151'       108'
   When it is.require.d ttrat subjept..bg sharply defin^ed thtongho,rt itrfocys.upo+ a. point,at the                              frynerfoc-al                                        distanee, in- la-1ge figu1es o"-t"Utl,-i;t"t.u,L;and stop designate9,                      .?td Qpigcts                             from about ohe-half"tttafi aisian       fdaffrom camer& to infinity will be in focus. With next smaller riop"u-zIio."r.'rt'iUjlctin focus will be about 16 feet.
    The nearer the point focused,.upon the g:eater the loss in depth of field, un-less the lens stop is decreased in diameter sulfficiently to give thel;d;A;i"6-ness to objects in foreground and baekground.
    Table shows the nearest and farthest objects in focus when focusing lenses
of different focal length, with stop /.8, upon L point at ditrere"i ai.iu"cEr E;;camer&'
                 DEprH oF F.TELD*
   l)lstance focused                                                            25 Ft.          50 Ft.   upon at Stop /.8       6 Ft.            12 Ft.
            4260                            g,-\7,          15'-66'        22'-Infinity
   .42=rJ   lrl         5rz"                             10'-15'            L7',-44'       26'-Infinity
   tr.o         5LA"                             70'-L5'            18',-41'       28'-Infinity
    I-(9         532'                               70',-r4)4'         18',-39'        29'-t92,
  trl=-J         694'         670-79"        t0)1,-rg/a'        19,-35'         3t,-l2l'
  (-)             7 r40       68%o             tort'-rg14,      20t4'-32'
  lr
           8t40                            11/-13'          21,-30,       37Yz'-75'
                       ten referred to as
View original page 6
Page 9 · Read text
How to Use Table to Stop Motion at
            Right Angles to Camera
    Find the subject group, and the exposure for movement at
right angles to camera will be found in the square on the line of
"distance of object" and under "foeal length of lens."
          Example:
             Subjeet                       Motor boat
             Distance                        50 Feet
            Speed of Subject -              30 Miles per hour             Foeal Length of Lens              684'
            Exposure -                         1/550
   The shutter speeds given are necessary to stop the motion.
The lens opening must be regulated to meet the prevailing light
conditions.
                                                             expo-    For bright days it is suggested that Stop /.8 be used with
sures 1/195 to 1/350; f .5.6 with exposures 1i350 to 1/550; /.4.5 for
exposures 1/680 to 1/1000.
   On hazy or dull days, with s&me exposure,  proportionately
                                used.                       be                   should       lens          openingslarger-                          operate              advisable                                the shutter at a higher speed        is not                      to     It
than is necessary to stop movement of the subject, thereby gailing
the advantage of ful eiposures and the ability to use smaller lens
openings,-      which will give greater depth of field.                                                            45   To decrease a given shutter speed  I 13 for movement at
                                                             speeddegrees , or 2f3 for oncoming subjects, use the second loweron Graflex exposure plate for 1/3 less, and the fifth lower exposure
for 213 less.
          Example:                                      r000
                                                       825
                                                          680
                                  Right angles H      550
                                                           440
                            45 degrees; 1/3 less )>-)    350
                                                       295
                                                    235
                     Toward c&mer&; 2/3 less H      195
                                                           160

  THE FOLMBR GRAFLEX CORPORATION
                   ROCHESTER, N. Y.

                                                                          PRINTED IN U.E.A.
View original page 9

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