Exposure meter

Details Exposure meter Exposure meter

1977-08-15

1980-01-08

Hille, Rolf G.

Optics: measuring and testing

Photometers

Photoelectric

356222, 354 23D, 354 31, G03B 708, G01J 142

Patent

active

041825730

ABSTRACT:
An exposure meter for use in photography which includes means for measuring brightness at a plurality of places in a scene to be measured for exposure, means for calculating frequency distribution of the brightness which divides brightness value into many stages and counts frequency of occurrence of brightness at each of the stages, and means for calculating, under designated conditions, position whereat film latitude is to be present within the width of the brightness distribution.

REFERENCES:
patent: 3971046 (1976-07-01), Nobusawa
patent: 4032801 (1977-06-01), Fulkerson
patent: 4047187 (1977-09-01), Mashimo et al.

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