Silver halide photographic material

A silver halide photographic material comprising photographic constituent layers including a blue-sensitive, green-sensitive, and red-sensitive emulsion layer, on a support, wherein;

• at least one of said photographic constituent layers comprises a silver halide emulsion containing core/shell silver halide grains having a core comprising 5 to 40 mole percent silver iodide and a shell comprising at least 95 mole percent silver bromide, and a polymer including a repeating unit represented by the following Formula (I), having a weight average molecular weight of no more than 30,000, a total thickness of said photographic substituent layers being more than 18 .mu.m on a dry basis;
• and
• said green-sensitive emulsion layer comprises a magenta coupler represented by the following Formula (M-II);
• ##STR46## where R.sup.1 is a hydrogen atom or an alkyl group;
• Z represents the atomic group necessary to form a lactam ring;
• A is a simple linkage, --CO--, --COO(CH.sub.2)--.sub.n, or --CONR.sup.2 (CH.sub.2)--.sub.n where R.sup.2 is a hydrogen atom or an alkyl group, and n is an integer of 1-6;
• and ##STR47## where X is a hydrogen atom or a group that can be eliminated upon reaction with the oxidation product of a color developing agent;
• and R.sub.1 and R.sub.2 each are a hydrogen atom or a substituent.