A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.

Silver halide photographic material.

A silver halide photographic material is disclosed, which comprises (a) at least one light-sensitive silver halide emulsion layer containing a hydrazine derivative and (b) a hydrophilic colloid layer which is different from the light-sensitive silver halide emulsion layer and which contains a redox compound capable of releasing a development inhibitor as a result of oxidation

Silver halide photographic materials

A silver halide photographic emulsion is described which has excellent color-sensitizing efficiency by sensitizing dyes, sharpness, covering power, and pressure resistant properties, wherein the grains are comprised of core/shell type grains having contained therein a partially halogen-converted silver salt phase, the silver salt comprising silver halochloride, silver thiocyanate or silver citrate.

Silver halide photographic emulsion

A silver halide color photographic material comprises a combination of at least one yellow dye-forming coupler of the following general formula (1) with at least one discoloration inhibitor of special amide, phosphorus or hydrazine compound type to prevent the dye images, especially the yellow dye image, formed therein from discoloring or changing their colors; ##STR1## wherein X 3 represents an organic residue completing a nitrogen-containing heterocyclyl group together with ##STR2## Y represents an aromatic or heterocyclic group; and Z represents a group capable of splitting off when the coupler represented by the foregoing formula reacts with the oxidation product of an aromatic primary amine color developing agent.

Silver halide color photographic material

Silver halide emulsions are disclosed in which at least 50 percent of total grain projected area is accounted for by tabular grains (1) bounded by {100} major faces having adjacent edge ratios of less than 10, (2) each having an aspect ratio of at least 2, and (3) internally at their nucleation site containing iodide and at least 50 mole percent chloride. The emulsions are prepared by a process comprised of the steps of (a) introducing silver and halide salts into a dispersing medium so that nucleation of the tabular grains occurs in the presence of iodide with chloride accounting for at least 50 mole percent of the halide present in the dispersing medium and the pCl of the dispersing medium being maintained in the range of from 0.5 to 3.5 and (b) following nucleation completing grain growth under conditions that maintain the {100} major faces of the tabular grains.

High chloride tabular grain emulsions and processes for their preparation

Photographic emulsions are disclosed comprised of radiation sensitive silver bromide grains optionally containing iodide. The grains exhibit a face centered cubic crystal lattice structure and are formed in the presence of a hexacoordination complex of rhenium, ruthenium, or osmium with at least four cyanide ligands.

Photographic emulsions containing internally modified silver halide grains

The improved film clamp comprises a base plate having an aperture defined therethrough and over which a film strip is positioned in a plane; a platen having a flat surface and an aperture (5) defined therein and mounted to said base plate with the apertures of said base plate and said platen aligned with each other when the platen is clamped to the base plate; and flexible gripping means (30) positioned around the periphery of the aperture (5) of either said platen, said base plate or both, each of said flexible gripping means (30) including a locating section (31) arranged so as to be inserted into locating slots (21,22,23) provided around the periphery of the aperture (5) of either said platen, said base plate or both, said locating slots being, when said base plate and said platen are clamped together, substantially perpendicular to the plane of the film strip and a gripping section angled with respect to said locating section outward from the aperture(s) so as to grip and tension said film strip between said base plate and said platen when they are clamped together.

Multiformat film clamp

A film gate for transporting an elongated film
therethrough, comprising:
 two spaced apart arcuate guide surfaces to engage
against opposed edge margins of the film; a drive roller assembly, an idler roller assembly,
and two elastic belts engaged around them to lie along
respective arcuate surfaces from an entrance position, to an
exit position defined by a nip between the drive roller
assembly and the guide surfaces, so that upon rotation of
the drive roller assembly opposite edge portions of the film
can be transported in engagement between the belts and the
arcuate guide surfaces from the entrance to exit positions.
A scanner using such a film gate, and a method of scanning
film using such a scanner, are also provided.

Film gate and scanner, and method of scanning using the scanner

This invention relates to a negative silver halide photographic
element comprising a support and a silver halide imaging layer containing a light
sensitive silver halide imaging emulsion, said silver halide imaging layer further
comprising a separately precipitated non-imaging intentionally fogged fine grain
emulsion and an electron transfer agent releasing compound represented by
formula (I):
 CAR 1 -(L) n -ETA 
wherein:
 CAR 1 is a carrier moiety which is capable of releasing ―(L)n-ETA on
reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable electron transfer agent, and (optionally) a development
accelerator releasing compound represented by the formula (II):
 CAR 2 -(SAM)-NX 1 -NX 2 X 3 
wherein:
 CAR 2 is a carrier moiety which is capable of releasing -(SAM)-NX 1 -NX 2 X 3 
on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is
released on reaction with oxidized development agent; and - NX 1 -NX 2 X 3 is a hydrazine group wherein X 1 , X 2 and X 3 are individually
hydrogen or a substituent chosen from alkyl, aryl, carbonyl, or sulfonyl groups
with the proviso that at least one of X 1 , X 2 and X 3 is hydrogen.

John E. c

Papers

Photographic emulsions containing internally modified silver halide grains

Multiformat film clamp

Film gate and scanner, and method of scanning using the scanner

Silver halide photographic element containing fogged emulsions for accelerated development