Process of forming a telecine transfer image having enhanced sha

Details Process of forming a telecine transfer image having enhanced sha Process of forming a telecine transfer image having enhanced sha

1994-12-05

1996-10-01

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Retrieving image made using radiation imagery

430359, 430504, G03C 1100

Patent

active

055610129

ABSTRACT:
Color negative photographic films having red, green and blue color sensitive records, wherein the ratio of the toe area contrast to the mid-scale contrast for each of the red, green and blue color records is less than or equal to 0.80, and either at least two color records having a toe-area contrast less than or equal to 0.42 or a mid-scale contrast less than or equal to 0.55, or the film having a speed rating of ISO 200 or greater. The mid-scale contrast for a color record is defined as the slope of a straight line connecting a point C and and a point D on the characteristic curve of Status M density versus log Exposure for the color record, where points C and D are located by defining a point A on the characteristic curve at a density level 0.1 above minimum density, a point B is located on the characteristic curve at an exposure value +1.0 Log Exposure beyond point A, and points C and D are located at exposure values -0.45 log Exposure and +0.45 log Exposure with respect to point B, respectively. The toe-area contrast is the slope of a straight line connecting a point E and a point F on the characteristic curve, where point E is located at (mid-scale contrast)/6 density units above minimum density, and point F is located at 0.3 log Exposure higher in exposure on the characteristic curve than point E. Use of such a color negative films are particularly advantageous in making telecine transfers.

REFERENCES:
patent: 3849138 (1974-11-01), Wyckoff
patent: 4680253 (1987-07-01), Shibahara et al.
patent: 4792518 (1988-12-01), Kuwashima et al.
patent: 4855836 (1989-08-01), Shearer
patent: 5003379 (1991-03-01), Moore, Jr. et al.
patent: 5266451 (1993-11-01), Schmuck et al.
patent: 5300381 (1994-04-01), Buhr et al.
patent: 5314793 (1994-05-01), Chang et al.
patent: 5360703 (1994-11-01), Chang et al.
patent: 5390036 (1995-02-01), Buhr et al.
patent: 5391443 (1995-02-01), Simons et al.
patent: 5428387 (1995-06-01), Galt et al.
Engineering Handbook; Edward Ebfitts; 8th ed; National Association of Broadcasters, 1992, Ch. 5.8, pp. 933-946, "Film for Television" by Richard W. Bauer.
The Negative by Ansel Adams, New York Graphic Society, Boston, Mass. USA (1981), Chapter 4, "The Zone System", pp. 47-98.
AGFA XT100, XT125, XTR250, and XT320 Colour Negative Films Technical Data sheets (16 pages).

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