VERFHAREN FÜR DIE ENTWICKLUNG VON BEI RAUMLICHT HANDHABBAREN,RADIOGRAPHISCHEN FILMEN UNTER ANWENDUNG EINER ZWEI-STUFEN-ENTWICKLUNG

Black-and-white elements, such as radiographic films, can be processed in roomlight because they include certain light absorbing dyes and desensitizers. Processing is carried out by processing the exposed element using a processing kit and a two-stage process in the same light- and fluid-tight processing container. In the first stage, development is initiated with a developing composition having a pH of from 10 to 12.5, and comprising an appropriate black-and-white developing agent in a concentration of from 0.1 to 0.5 mol/l, and a sulfite at from 0.25 to 0.7 mol/l. After an appropriate time, a fixing agent (other than a sulfite) is introduced into the processing container to provide a combined developing/fixing compositions, and development and fixing are carried out simultaneously. The processing method is carried out quickly, usually within 90 seconds, including a washing step at the end. The presence of sulfite and high pH in both stages decolorize or deactivate the particulate dyes. A processing kit includes a photographic element, and two or more of a developing composition, a fixing composition, and a suitable light- and fluid-tight processing container.