Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1987-11-19
1989-04-11
Hix, L. T.
Photocopying
Projection printing and copying cameras
Illumination systems or details
355 38, G03B 2772
Patent
active
048210730
ABSTRACT:
A method is provided for determining the exposure of a photographic negative to be printed in a cropped, enlarged format. The method is performed by defining a region of the negative to be printed, measuring selected density characteristics of the negative in only that region, and determining the exposure based on those measured density characteristics. The method is implemented in an enlarging photographic printer including means for defining the region of the negative to be printed, and means for measuring the selected density characteristics of the negative only in that region. Means are provided for using the selected density characteristics to calculate an exposure for the negative region, and for exposing the negative region onto photographic paper in accordance with the calculated exposure.
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Backus Richard J.
Cosgrove Patrick A.
Brandt Jeffrey L.
Eastman Kodak Company
Hix L. T,.
Rutledge D.
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