Abstract: A process is described for the prevention of darkening and the formation of a sediment in photographic developer solutions which contain a silver halide developer, a water-soluble silver halide solvent and organic sulfur compounds. The organic sulfur compounds are a combination of (a) an organic thiol compound or thione compound capable of tautomerism and (b) a Bunte salt which contains groups conferring solubility in water. Developer solutions which contain the indicated combination of sulfur compounds are outstandingly stable.

Abstract: There are described novel acyclic silver complexing agents which are useful as silver halide solvents in photographic products, processes and compositions. Also disclosed are photographic compositions, products and processes in which the complexing agents are utilized.

Abstract: An aqueous photographic tri-color processing monobath, which includes a color developer and a fixing agent, and which has a pH of about 10.6, is capable of color developing and fixing an exposed photographic film, without requiring any bleaching of the developed film. Moreover, apparently due to the compact morphology of the residual silver, it has been discovered that a monobath of the type disclosed is suitable for producing both an unobscured dye image and a silver plus dye sound track in a single processing step.

Abstract: Difunctional compounds wherein one of said functions is a hard or soft atom that ionizes to the corresponding anion in alkaline solution to combine with silver cation and the other of said functions is a non-ionizable soft base that additionally combines with said silver cation are employed as silver halide complexing agents in photography. In a preferred embodiment, the difunctional compounds possess (a) an O, N or C atom that ionizes to the corresponding O.sup..crclbar., N.sup..crclbar. or C.sup..crclbar. anion in basic solution and (b) an --S-- containing moiety excluding --SH and moieties that form --S.sup..crclbar. in basic solution wherein the --S-- of said moiety is positioned alpha, beta, gamma, delta, epsilon or zeta to said anion.

Abstract: A photographic developer composition containing Phenidone and hydroquinone in a 1 to 2 weight ratio, the composition having a gamma less than 1 and a pH in the range of about 9.8 to 10.4. The composition is particularly useful as an extended range developer for rapid processing of aerial film.