Patent ID: 7238468

Claim:
A silver halide emulsion comprising a silver halide grain containing at least two metal complexes each giving an average electron releasing time of 10 −5 to 3 seconds, wherein among said at least two metal complexes, at least one metal complex gives an average electron releasing time of 10 −5 to less than 10 −2 second and at least one metal complex gives an average electron releasing time of 10 −2 to 3 seconds, and all of said at least two metal complexes are metal complexes each having at least two different ligands; wherein two of said at least two metal complexes are a first metal complex and a second metal complex having at least three times longer average electron releasing time than that of the first metal complex and the molar ratio of the amount of the first metal complex to that of the second metal complex is at least three times.