Eastman-kodak Company

Andrew R Benoy

John R Fyson

Christopher B Rider

Colin J Gray

Eric Ordia

A method of forming a photographic image in an imagewise exposed high contrast photographic material free from nucleating agents comprising a support bearing a silver halide emulsion layer comprising silver halide grains wherein at least 10% of the silver halide grains are spectrally sensitized and a hydrophilic colloid having a silver:hydrophilic colloid ratio above 1. The method comprises developing the material in a developer comprising an ascorbic acid developing agent at a pH no greater than 10.5, the developer being free of hydroquinone.

Method of processing a photographic high contrast silver halide material

A method of controlling the replenishment of a processing solution used for processing a photographic material in photographic processing apparatus, wherein replenishment chemistry is added to the processing solution and the replenishment rate is controlled using an algorithm, is characterised in that at least one of the terms of the algorithm is determined by information associated with the replenishment chemistry.

Growing community of inventors

Watford, United Kingdom

Andrew R Benoy