Tinted prints.

On the same rotary printer, the black and white duplicate negative is printed to a neutral grey image on colour print film [this, too, can be established on a video analyser] in the first pass through the printer. The print film is then passed back through the printer [i.e. a second pass] and exposed to an overall flash exposure [in much the same way as pre-flashing to reduce contrast] at printer light valve settings chosen for the colour of the tint produced.

On processing the image will be monochrome black and white suffused with a tint over the entire frame area. The black image areas will be black and the unexposed highlight areas coloured.