Mixed grain emulsions of the same grains having different speed properties for photographic elements

The invention relates to a photographic element comprising at least two photographic emulsions wherein the grains of said at least two emulsions are the same and wherein at least one of said at least two emulsions is treated with a speed decreasing compound.

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Bibliographische Detailangaben
Hauptverfasser:	FREDERICK CHARLES DERKS, JERZY ZENON MYDLARZ, ROGER LEE KLAUS
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	The invention relates to a photographic element comprising at least two photographic emulsions wherein the grains of said at least two emulsions are the same and wherein at least one of said at least two emulsions is treated with a speed decreasing compound.