Abstract: A method of obtaining a color proof in which color-separated images are successively exposed onto colored light-sensitive layers. The layers are all transferred to a printing paper. The exposures are performed through a mask having dots of predetermined density and diameter, depending on the type of printing paper. If the color-separated images are positive, the dots are transparent on a dark background. If the color-separated images are negative, the dots are dark on a transparent background and additional exposures are made without the mask.

Abstract: A developer's activity control system and a photographic processing apparatus controlling same that divides the activity of the developing solution into a plurality of stages on the basis of the results of the processing of control strips and takes the necessary action for each stage, said developer control system includes a means for storing the initial conditions of the developing system and a means for comparing these initial conditions with the present conditions, the output of said comparing means being used to properly select the necessary action for each stage.