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National Stock Number:
6760-00-424-8006
Federal Supply Class:
6760
National Item Identification Number:
004248006
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:
| S2 | 92434 | PHOTO RESEARCH INC |
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Techincal Specification:
| DOCUMENT TITLE AND DATE | PR PRODUCT BULLETIN 503,DATED 28 AUGUST 1967 | | ACCESSORY COMPONENTS AND QUANTITY | PHOTOSPHERE 1,PHOTOGRID 1,PHOTODISK 1,NECKSTRAP 1,SLIDES 2 | | CALCULATOR TYPE | INSTANT READING | | CARRYING CASE | PROVIDED | | OVERALL LENGTH | 4.500 INCHES NOMINAL | | OVERALL THICKNESS | 1.250 INCHES NOMINAL | | OVERALL WIDTH | 2.125 INCHES NOMINAL | | MATERIAL | PLASTIC HOUSING | | MEASUREMENT UNIT | FOOTCANDLE AND F-STOP | | SENSITIVITY RANGE | +2.500 TO 250.000 FOOTCANDLE | | USAGE DESIGN | ANY ACCEPTABLE | | VIEW ANGLE IN DEG | 360.0 VERTICAL PLANE |
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