| 摘要 |
A method of preparing a silver halide emulsion is disclosed, comprising the steps of forming a silver halide emulsion, subjecting the silver halide emulsion to chemical sensitization, and adding a sensitizing dye the silver halide emulsion, wherein the sensitizing dye exhibits an absorption maximum at a wavelength of not less than 730 nm, the pAg of the emulsion being adjusted to a range of from 7.50 to 8.25 after strating the chemical sensitization and before adding the sensitizing dye.
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