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photoconductive exposure meter
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photoconductive exposure meter

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use as exposure meter

  • exposure meter
    In exposure meter

    …of the variable resistance, or photoconductive, type. In those meters the light-sensitive element, sometimes a cadmium sulfide cell but most often consisting of silicon photodiodes, is connected to a battery-powered circuit and changes its electrical resistance with variations in the light intensity. The change in current is measured by a…

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