or translucent original image printed by contact onto a light sensitive material. Negatives or positives on film or even paper may for various purposes be used to make contact exposures onto different films and papers. Intermediary products such as internegatives, interpositives, enlarged negatives, and contrast controlling masks are often made using contact exposures.

Computer screens and other electronic display devices provide an alternative approach to contact printing. A permanent image (negative, positive film or transparency, or