Photographic element comprising a red sensitive silver halide emulsion layer

A silver halide photographic element comprising a support and a silver halide emulsion layer containing tabular silver halide grains sensitized with a sensitizing dye of Formula I:

• ##STR19## wherein each of X.sub.1 and X.sub.2 is an oxygen atom, a sulfur atom, or a selenium atom, with the proviso that one of X.sub.1 and X.sub.2 is an oxygen atom and the other is a sulfur or selenium atom;
• V.sub.1 and V.sub.2 together represent the atoms necessary to complete a fused benzene ring and V.sub.3 is hydrogen, or V.sub.2 and V.sub.3 together represent the atoms necessary to complete a fused benzene ring and V.sub.1 is hydrogen;
• each of V.sub.4 and V.sub.5 is independently a hydrogen or halogen atom, or an alkyl, alkoxy or aryl group;
• R.sub.1 is an acid substituted alkyl group;
• R.sub.2 is a 2-sulfoethyl group;
• and M is a counterion as necessary to balance the charge;
• said emulsion having a peak sensitivity below about 640 nm.