Control negative for use in setting up exposure condition of pho

Details Control negative for use in setting up exposure condition of pho Control negative for use in setting up exposure condition of pho

1996-07-10

2000-10-31

Adams, Russell

Photocopying

Projection printing and copying cameras

Multicolor picture

G03B 2785

Patent

active

061410802

ABSTRACT:
A control negative has at least a frame which has a center eye portion reproducing a neutral gray on a reference print formed under optimum exposure conditions, and a background area consisting of a gray base portion and a plurality of color chips dispersed over the gray base portion. The gray base portion reproduces a neutral gray and each color chip has a specific color on the reference print. A couple of portraits are disposed on opposite horizontal sides of the center eye portion, to represent an upper and a lower limit of flesh tone on the reference print. A density control chart and a color control chart are disposed in the same horizontal center line as the center eye portion. The density control chart has white and gray areas disposed adjacent to each other. The color control chart has a gray area and a color scale consisting of a series of color segments. The color segments have color densities unbalanced by a constant degree from an equivalent neutral density of the gray area toward individual directions so as to have different hues from each other on the reference print.

REFERENCES:
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patent: 5245383 (1993-09-01), Matsushita et al.
patent: 5262821 (1993-11-01), Hosoya
patent: 5671041 (1997-09-01), Iwaki
patent: 5745215 (1998-04-01), Miyauchi et al.
patent: 6018381 (2000-01-01), Vanderbrook et al.

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