Light-sensitive silver halide photographic material, silver halide emulsion, and process for preparing these.

摘要

A light sensitive silver halide phtographic material having at least one of the silver halide emulsion layers which comprises a silver halide emulsion mainly composed of twinned crystal grains and having a proportion of not more than 1/20 for a number of fogging grains to a number of total silver halide grains in the layer is disclosed. A method of preparing the silver halide emulsion is also disclosed. In the preparation process, a silver compound is added under conditions of a pH of from 1 to 5 in respect of not less than 50 mol % of residual silver compound added in a course of formation of silver halide grains, after at least 90 mol % of silver compound has been added.