Abstract: A photographic element is described comprising a support having thereon(a) a silver halide emulsion layer where the silver halide is sensitized with a dye having the formula: ##STR1## Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered heterocyclic nucleus,R.sub.1 and R.sub.2 each independently represents substituted or unsubstituted alkyl or substituted or unsubstituted aryl, andR.sub.3, R.sub.4, R.sub.5, and R.sub.6 each independently represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl,X represents a counterion, and(b) at least one other red- or infrared-sensitive silver halide emulsion layer having a maximum sensitivity at a wavelength different from that of the (a) layer.

Abstract: A photographic element is described comprising a support having thereon a silver halide emulsion layer where the silver halide is sensitized with a dye having the formula: ##STR1## wherein where Z.sub.1, Z.sub.2, Z.sub.3, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and X are as defined herein.

Abstract: There is described a process for recording a positive or negative continuous tone color copy having the same or lower contrast than a continuous tone original image, comprising the steps of:providing a photographic element comprising a support having thereon a silver halide emulsion unit capable of forming a yellow image, a silver halide emulsion unit capable of formign a cyan image, and a silver halide emulsion unit capable of forming a magnenta image, each image-forming unit having a maximum spectral sensitivity at a different wavelength of radiation, and at least one of the image-forming units having a gamma as described herein,receiving image data representing the densities of the yellow, magenta, and cyan records of the original image,modifying said image data and using it to control three exposure sources, each emitting radiation in the region of maximum spectral sensitivity for a corresponding one of the image-forming units, so that, after exposure, the recorded image density range for at least one of

Abstract: A photographic element is disclosed comprising a support having thereon a silver halide emulsion layer spectrally sensitized with(a) a first sensitizing dye according to the formula: ##STR1## Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered heterocyclic nucleus,R.sub.1 and R.sub.2 each independently represents substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each independently represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, andX represents a counterion, and(b) a second sensitizing dye having a maximum sensitivity at a wavelength of about 5 to 100 nm less than the wavelength of maximum sensitivity of the first sensitizing dye.

Abstract: A photographic element is described comprising a support having thereon a silver halide emulsion layer comprising silver halide sensitized with a dye of the formula: ##STR1## wherein L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5, L.sub.6, L.sub.7, L.sub.8, and L.sub.9 each independently represents a substituted or unsubstituted methine group,Z.sub.1 represents the atoms necessary to complete a benzothiazole nucleus, a benzoxazole nucleus, a benzoselenazole nucleus, a benzotellurazole nucleus, or a benzimidazole nucleus, which, in addition to being substituted by --SR.sub.3, is further substituted or unsubstituted.Z.sub.2 represents the atoms necessry to complete a substituted or unsubstituted 5- or 6-membered heterocyclic ring.R.sub.1 and R.sub.2 each independently represents substituted or unsubstituted alkyl or substituted or unsubstituted aryl.R.sub.3 represents substituted or unsubstituted alkyl of from 1 to 4 carbon atoms.m is 1 or 2,n is 0 or 1, andX is a counterion.