Silver halide photographic light-sensitive material

A monochromatic silver halide photographic light-sensitive material comprising a support, and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support, wherein a compound represented by Formula 1 is contained in either said emulsion layer, said colloid layer or both said emulsion layer and said colloid layer, and said silver halide emulsion is sensitized by a sulfur sensitizer, a gold sensitizer, and a selenium compound or a tellurium compound and said emulsion contains tabular silver halide grains having an average aspect ratio of not less than 2.0, said grains accounting for at least 50% of a total grain projected area of said emulsion, and said tabular grains have an average silver iodide content of not more than 1 mole %, and said emulsion layer contains a spectral sensitizing dye represented by Formula 5;

• R.sub.11 --(S).sub.n --R.sub.12
• wherein R.sub.11 and R.sub.12 each represent an aliphatic, an aromatic group or a heterocyclic group, the groups represented by R.sub.11 and R.sub.12 may be the same or different and they may be bonded with together to form a ring;
• and n is an integer of from 2 to 6 ##STR41## wherein R.sub.51 and R.sub.53 are each an alkyl group, which may have a substituent;
• R.sub.52 and R.sub.54 are each a lower alkyl group having 1 to 4 carbon atoms and at least one of R.sub.52 and R.sub.54 is a lower alkyl group having 1 to 4 carbon atoms which has a hydrophilic substituent;
• X is an ion necessary for neutralizing the intramolecular electric charge, n is 1 or 2, provided that n is 1 when an intramolecular salt is formed;
• Z.sub.51, Z.sub.52, Z.sub.53 and Z.sub.54 are each a halogen atom, an alkyl group, an alkoxyl group, an alkylthio group, a trifluoromethyl group, a cyano group, a carboxyl group, an alkoxycarbonyl group, an acyl group, a sulfonyl group, a carbamoyl group, a sulfamoyl group, an acetylamino group, an acetyloxy group or an aryl group.