Abstract: A silver halide photographic emulsion comprising grains, wherein 70% or more of the total projected area of the grains is occupied by silver halide grains each meeting requirements (a) to (d) below

Abstract: A silver halide color reversal lightsensitive material comprising a transparent support and, superimposed thereon, a blue-sensitive emulsion layer unit, a green-sensitive emulsion layer unit and a red-sensitive emulsion layer unit, each of these units comprising at least two emulsion sub-layers having the same color sensitivity but different speeds from each other, wherein the material contains a yellow dye in an amount of 0.15 to 1.0 g/m2 and satisfies the relationship: 0.9≦&ggr;′/&ggr;≦1.25 wherein &ggr; and &ggr;′ each represent a point-gamma value of a portion of the material giving a magenta density of 1.

Abstract: A silver halide color reversal lightsensitive material comprising a transparent support and, superimposed thereon, a blue-sensitive emulsion layer unit, a green-sensitive emulsion layer unit and a red-sensitive emulsion layer unit, each of these units comprising at least two emulsion sub-layers having the same color sensitivity but different speeds from each other, wherein the material contains a yellow dye in an amount of 0.15 to 1.0 g/m2 and satisfies the relationship: 0.9≦&ggr;′/&ggr;≦1.25 wherein &ggr; and &ggr;′ each represent a point-gamma value of a portion of the material giving a magenta density of 1.

Abstract: A monodispersed silver halide emulsion has an average silver iodide content of 1 to 20 mol %, an average equivalent sphere diameter of 0.1 to 0.6 .mu.m, and 60% or more of the total projected area of all the grains in the emulsion are occupied by tabular silver halide grains each having principal planes composed of {100} faces in an amount of 80% or more based on the total surface area of each grain.

Abstract: There is disclosed a light-sensitive silver halide photographic emulsion, which comprises light-sensitive silver halide grains mainly composed of (100) planes and (111) planes, at least one compound that is adsorbed selectively on the (100) planes of the silver halide grains, and at least one spectrally sensitizing dye. There is also disclosed a light-sensitive material using the emulsion. The emulsion is high in sensitivity and excellent in graininess.

Abstract: A silver halide color photographic material comprising a plurality of light-sensitive layers having different spectral sensitivities, wherein two nearest light-sensitive layers interposing a light-insensitive layer containing colloidal silver each contains in the proportion of 50% or more (of the projected area) of tabular grains having an aspect ratio of from 3 to 100 and 10 or more dislocation lines per one grain, and a light-insensitive layer is provided between each of the light-sensitive layers and the light-insensitive layer containing colloidal silver.

Abstract: A method for producing a silver halide emulsion, said method comprising: adding silver nitrate to a halogen compound to form an emulsion grain; and doping a non-labile selenium compound in an amount, in terms of selenium added, of from 1.0.times.10.sup.-8 to 1.0.times.10.sup.-6 mol per a unit surface area of 1 m.sup.2 of said emulsion grain, at the time when from 10 to 49% of the total silver amount used for the formation of said emulsion grain is added.