Silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorsNaoyasu Deguchi, Tetsuro Kojima, Hideo Miyazaki, Shigeru Ohno, Koki Nakamura
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AssigneeFuji Photo Film Co., Ltd.
InventorsNaoyasu Deguchi, Tetsuro Kojima, Hideo Miyazaki, Shigeru Ohno, Koki Nakamura
Estimating the term…
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains which have a diameter not less than 5 times the thickness thereof and account for at least 50% of the total projected area of the silver halide grains present in the silver halide emulsion layer and the silver halide photographic material also contains at least one compound represented by following general formulae (I), (II), (III) and (IV): ##STR1## wherein R represents a straight chain, branched chain or cyclic alkylene group, a straight chain or branched chain alkenylene group, a straight chain or branched chain aralkylene group or an arylene group; R.sub.1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group; Z represents a hydrogen atom or a polar substituent; X represents a hydrogen atom, a cation necessary for neutralizing the molecule or a precursor; and n represents 0 or 1. The silver halide photographic material has improved image sharpness not only at high spatial frequencies but also at low spatial frequencies.
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains which have a diameter not less than 5 times the thickness thereof and which account for at least 50% of the total projected area of the silver halide grains present in the silver halide emulsion layer, and wherein tabular silver halide grains having a ratio of diameter/thickness of 8 or more are present in an amount of not more than 50% of the total projected area, the silver halide photographic material also containing at least one compound represented by the following general formulae (I), (II), (III) and (IV):
Dependencies are inferred from the claim text.