Weston XM-2 light meter User manual

INSTRUCTIONS   MODEL550

    EXPOSUREMETER


  METER DESCRIPTION

     1. Battery Gover                  10. Baffle Slide Switch
     2. Scale Selector Switch          11. Outer Dial
     3. Pointer                        12. Index Mark
     4. Zero Corrector                 13. Shutter Speed Scale
     5. Film Speed Index              14. f/Stop Scale
     6. Dial                           15. Incident Light Diffusor
     7. Dial Knob                     16. Movie Film Speed Scale
     8. Film Speed Index Window      17. Exposure Value (E.V.) Scale
     9. Scale Selector Window


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1. InstallBattery-Removebatterycover (1) with coin or screwdrlverand lnsert
  batlery wlth posltlve "+" side up and replace coyer. lt is advisableto
  remoyebatlery lor long storage periods.
2. GheckPointerAllgnment-WlthScaleSelectorSwltch (2) In "OFF'poslllon,
  polnter(3) should be on zero. lf polnter is off zero, Inserl screwdrlverinto
  zero corrector (4) and turn it clockwise, or counter-clockwiseuntll
  pointerls on zero.
3. Sel Fllm Speed-Setfllm speedIndex (5) by rotatlngdlal (6) wlth dlal
  knob (7) unlll the Index number(ASA) supplledwlth the film is visibleIn
  wlndow (8) and allgnedwilh the Index mark.
4. SelectScale-The ScaleSelectorSwltch (2) has four posltlonsas shown In
  window (9): OFF,BATTERYTEST,H (normallight), and L (low level llght).
      a. BatteryCheck-To lest the batterycondltlon,swltch to BATTERYTEST
        posltlonand note pointer.Polntershould be on, or to the rlght of mark on
        the BATTERYTEST scale.lf the polnter ls to the left ol the mark,
        replace lhe battery immediately.
      NOTE:Placethe ScaleSeleclorSwitch (2) In the'OFF" posltlon
      when meter ls not In use.
5. RellectedLlght Measurements-Tomeasulereflectedllght, set baflle sllde
  swllch (10) to'REF'posltlon and polnt the meler al sublecl.Set Scale
  SelectorSwllch (2) lo "H" scalelor normal llght condltlons.Nole numberon
  "H" scale,under polnter(3), and rotate outer dial (11) untll Index mark
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OPERATINGINSTRUCTIONS   (12) appearcal the samenumberas the polnter readlng.Selecta rhutter speed
   and f/Stop comblnallonlrom lhe Shulter SpeedScale(13) and f/Stop
   scale (14), respecllvely.
 6. lncldenl Llghl Measuremenb-Incldentllght readlngsare ertremely uselul lor
    poflralls,copy work and landscapes.To measureIncldentllghl, set balfle sllde
   swltch (10) to "lNC" posilion,In order to place the dlffusor (15) In
    lront ol the photocell. From the sublect to be photographed,polnt the meter
    dlrectly al the cameraand nole the reading on the scale (9) under the
   polnter(3). Rotatethe outer dial (11) untll Inder mark (12) appearsat the same
   number as the polnter readlng.Select a shulter speed and f/stop comblnatlon lrom
   the ShutterSpeedScale(13) and f/Stop scale (14).
 7. MovleFllm Erposures-Whenusing the WestonXM-2 to determlneproper
   erposure for movle lllm, proceed as follows:
       a. DetermlneShutter Speed- The correct shutter speed lor your movle
       cameraappeart on scale (12),dlrectly opposlteMOVIEF.P.S.scale (16);
         generally18 frames-per-second.Fllm speedsof 12 F.P.S.and
       32 F.P.S.are also provlded.
       b. Performa "reflectedllght" or "incldent llght" measurement,as
        descrlbedaboye,and note lhe f/Stop readlngon scale (14), dlrectly opposlte
         the shutler speed determlnedIn step a.
 8. For cameraswlth E.V.(ErposureValue)setllngs,use scale (17).
 9. For low levellightlngcondltlonsas usuallyencounteredIndoors,set Scale
   SelectorSwitch(2) to the "L" Ecaleposition.