Process for preparation of seed crystal emulsion

摘要

A silver halide emulsion is described, comprising tabular silver halide grains having an aspect ratio of not less than 3.0 and a grain diameter of not less than 0.8 mu m as calculated in terms of sphere in a proportion of not less than 50% of all silver halide grains as calculated in terms of projected area, prepared by a process which comprises desalting a silver halide emulsion comprising tabular silver halide grains having an aspect ratio of not less than 2.0 in a proportion of not less than 50% of all silver halide grains as calculated in terms of projected area, and then using the emulsion as a seed crystal emulsion. A silver halide photographic material comprising a support having provided thereon at least one layer containing the silver halide emulsion and a process for the preparation of the seed crystal emulsion are also described.