Abstract: A light-sensitive silver halide emulsion is disclosed, which comprises light-sensitive silver halide grains in a binder, wherein tabular grains having a diameter of at least 0.15 .mu.m account for at least 70% of the total projected area of said silver halide grains, said tubular grains have a mean aspect ratio of not more than 8.0, and at least 50% (by number) of all of said tabular grains are tabular grains in which the ratio (b/a) of the thickness (b) of said tabular grain to the longest spacing (a) between two or more parallel twinning planes of said tabular grain is at least 5. A color photographic material using the light-sensitive silver halide emulsion for at least one of the silver halide emulsion layers other than the outermost silver halide emulsion layer is also disclosed.

Abstract: A photosensitive silver halide emulsion whose grain diameter/grain thickness ratio is 5 or more. The grains of the emulsion each comprises a core that consists substantially of silver bromoiodide containing from 4 to 20 mol % of silver iodide, and a shell that covers the core and consists substantially of silver bromide or silver bromoiodide containing 3 mol % or less of silver iodide, and the relative standard deviation of the silver iodide content among the grains of the emulsion is 20% or less.

Abstract: A silver halide color photographic material which comprises a support having thereon at least two silver halide light-sensitive layers having essentially the same color sensitivity but different speeds and a light-insensitive layer positioned adjacent to the highest-speed layer of said light-sensitive layers and containing a compound which reacts with the oxidation products of a color developing agent to form a diffusible development restraining compound or a precursor thereof. The photographic material provides a color image having excellent graininess and color reproduction and has excellent characteristics of development processing.

Abstract: A silver halide color photographic material comprising a support having thereon at least a layer containing a group of silver halide grains having a relation that the larger an amount of silver of a grain is, the larger an amount of a content of silver iodide therein is, at a correlative coefficient of not less than 0.7 between a silver halide crystal grain size and a silver iodide content therein. The silver halide color photographic material has improved granularity and an improved gradient, and uses a small amount of silver.

Abstract: A silver halide color photographic material is described, comprising a support having thereon at least a cyan-color-forming red-sensitive emulsion layer, a magenta-color-forming green-sensitive emulsion layer, and a yellow-color-forming blue-sensitive emulsion layer; the weight-averaged wavelength (.lambda.) on the spectral sensitivity distribution determined by equi-energy spectrum of said red-sensitive emulsion layer being less than 640 nm; the longest wavelength in the wavelengths having the sensitivity of 1/2 of the maximum value of the above-described equi-energy spectrum being in a range of from 30 nm to 55 nm longer than the weight-averaged wavelength and the minimum wavelength thereof being in a range of from 30 nm to 55 nm shorter than the weight-averaged wavelength; in the above-described equi-energy spectrum, values A and B defined below satisfying the relation of A/B.gtoreq.0.

Abstract: A silver halide color light sensitive material with a silver iodobromide photographic emulsion layer is described. The silver iodobromide photographic emulsion contains at least one compound represented by the general formula (I): ##STR1## and at least one compound represented by the general formula (II): ##STR2## (in the general formulae (I) and (II), all symbols are as defined in the appended claims). The surface of silver iodobromide grains of the surface low iodine content type in the photographic emulsion is adsorbed from 10.sup.-7 to 10.sup.-3 mol of iodide ion per mol of silver halide. The silver iodobromide emulsion is spectrally sensitized in a red region without causing any undesirable problems.