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National Stock Number:
6760-00-199-2547
Federal Supply Class:
6760
National Item Identification Number:
001992547
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:
| 755 | 54985 | WOLLENSAK OPTICAL CO |
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