| 摘要 |
A photographic element comprises a support bearing two or more silver halide emulsion image-forming layers each containing ultrathin tabular grains or a support bearing at least three image-forming layers for forming images of different color in which at least one of the layers contains ultrathin tabular grains, wherein the imaging silver contained in the total of all the image-forming layers of the element is as described in subparts (1), (2) and (3): (1) ultrathin tabular grains, having a thickness of less than 0.07 microns, comprise at least 25 wt% of the total imaging silver content of subparts (1), (2), and (3); (2) (a) tabular grains of thickness at least 0.10 microns and (b) non-tabular grains having an ECD of at least 0.15 microns and less than 0.70 microns, comprise not more than 50 wt% of the total imaging silver content of subparts (1), (2), and (3); and (3) tabular grains having a thickness of at least 0.07 microns and a thickness less than 0.10 microns comprise not more than 50 wt% of the total imaging silver content of subparts (1), (2), and (3).
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