Sunpak 7D User manual

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 mt  Instruction
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    INST.dLLING BATTERIES
       Open battery compartment by pushing back the lid. Compartment holds 4 penlite
         batteries. Insert batteries with relation to (+) and (-) as shown on unit.
        Close compartment cover.
    BATTERY OPERATION
         Slide Battery/AC Selector switch to B position. You will hear a sustained high-pitch
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        'beep' indicating that the unit is in operation. When the ready-light begins to glow, the
                                 camera is ready to be fired. With fresh batteries, the
                                       ready-light will go on in about B seconds, and will
                                           recycle after each firing for about the sarne time.
                        A set of fresh zinc-carbon batteries will deliver about
                                   50 flashes before replacement becomes necessary. A set
                                      of manganese-alkaline  batteries will deliver about 3
                                      times as many.
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DETERMINING EXPOSURE                                              J.

    Rotate the outer ring of the Exposure Calculator on the unit until the arrow points
  to the ASA or DIN speed rating for the film in use. The correct lens aperture will be
   found on the inner dial adjacent to the distance from the unit to the subject. black
  arrow mark points both Black & white and Color films.
     If, for example, you are using ASA 25 film,  photographing a subject 10 feet away,
  the indicated lens aperture would fall f.4.

   Another method olten used for obtaining correct f stop is lvith film guide numbers.
  Dividing the guide number by the subject distance gives the numerical value of the f
  stop to be used. In the above exemple, using ASA 100 film the guide number would be
 80. At 10 feet, the aperture would then be 80 +10, or f 8.

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SPECIFICATION
  Weight:                               approx. 11 ozs.
  Light Covering Angle'                  65"
  Color Temperature:                5800o K
  Flash Duration :                         1/1,500th1/1,500th sesecond
  Recycling Time:                     6-10 seconds on batteries
                                       4-6 seconds on AC
 Power Source:                        4 standard penlite batteries-zinc/carbon,
                                    manganese alkaline or mercury

 Guide Number                      40 Kodachrome [  (in feet)

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