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National Stock Number: 6760-00-944-3944
Federal Supply Class: 6760
National Item Identification Number: 009443944
Description: METER,PHOTOGRAPHIC EXPOSURE
Detail: AN INSTRUMENT WHICH MEASURES THE QUANTITY OF LIGHT REFLECTED FROM OR ON A SUBJECT IN EXPOSURE UNITS BY MEANS OF A PHOTOELECTRIC CELL. THIS FIGURE, WHEN USED IN CONJUNCTION WITH AN INTEGRAL TABLE OR A CALCULATOR, GIVES A SUITABLE EXPOSURE TIME AND LENS APERTURE FOR THE EMULSION SPEED OF THE NEGATIVE MATERIAL USED. SEE ALSO COMPUTER, PHOTOGRAPHIC EXPOSURE.
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Manufacturer Information:
PR3 | 24446 | GENERAL ELECTRIC COMPANY |
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