Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refractive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer, and wherein the film contains in the radiation-sensitive layer, or a layer contiguous thereto, a hydrazine compound which functions as a nucleating agent.

Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refracive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer. The combination of the light-scattering agent in the overcoat layer and the thick interlayer facilitates optical spreading of the image during contact exposure, and thereby enhances the performance of the contact film in use with multi-layer originals and in processes of dry dot etching.

Abstract: A high-contrast photographic element is disclosed comprising a support having thereon in order, a layer comprising a filter dye (A), at least one silver halide emulsion layer having a gamma of at least 10, and a layer comprising a filter dye (B), which is the same as or different from dye (A), wherein filter dyes (A) and (B) absorb light in the region of the spectrum to which the silver halide emulsion layer is sensitive.

Abstract: A photographic emulsion comprising silver halide, a spectral sensitizing dye, and rhodanine.