11. They have been made for both contact printing and enlarging purposes by modifying the paper s light sensitivity. 12. The negative is sandwiched printer ink-to-emulsion in a contact printing frame then exposed under a UV light source. 13. Williams'approach is more akin to contact printing used in creating vinyl records _ but at a very small scale. 14. While print-through is a form of unwanted noise, contact printing was used deliberately for high-speed recording of video tape. 15. An example of a contact printing system is the SpotArray 72 ( Perkin Elmer Life Sciences ) contact-spotting system. 16. The calotype process produced a translucent original negative image from which multiple positives could be made by simple contact printing . 17. Both films are sandwiched together in the same camera and make use of a phenomenon known as " contact printing ". 18. Contact printing has no such resolution limit but is sensitive to the presence of defects on the mask or on the substrate.19. During continuous contact printing , the raw stock and the negative are placed next to one another around the sprocket wheel of the printer. 20. Photographers that create photographic art by " contact printing "; i . e . Platinum, AZO, need to create interpositives to create large negatives.
