The Paterson Contact Proof Printer (PTP620) is designed to proof a complete roll of 120 film (6x6, 6x4,5 & 6x7) on standard photographic darkroom paper of size 20,3x25,4 cm (8x10 inch). The Proof Printer holds four negative strokes.
In use the glass plate is hinged upwards and the negatives are positioned into the slots on the edges of the black mask fixed onto the under surface of the glass. The edge numbering on the film is visible through the mask allowing them to be printed onto the sheet of printing paper. A sheet of photographic printing paper is inserted emulsion side up into the contact printer. The foam pad ensures that the printing paper is in total contact with the negatives once the glass plate is clipped shut.