Internal latent image-type silver halide emulsion

摘要

An internal latent image-type silver halide emulsion containing core/shell type silver halide grains with a mean grain size of about 0.4 mu m or less, the grains comprising a core of chemically sensitized silver halide and a shell of silver halide covering at least the light-sensitive sites of the core and the surface of the grains being chemically sensitized wherein the core is chemically sensitized to such an extent that the difference between fog density F1 and fog density F2 as defined herein (i.e., internal fog density) is at least 0.10. This emulsion permits the formation of good reversal images in which Dmax is high and Dmin is low and, furthermore, has a superior storage stability.