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Photographic printing is the process of producing a final image on paper for viewing, using chemically sensitized paper.The paper is exposed to a photographic negative, a positive transparency (or slide), or a digital image file projected using an enlarger or digital exposure unit such as a LightJet or Minilab printer.
Depending on the color or the line and background, the appropriate paper may be developed for blueprints (blue background), whiteprints (blue line and white background), black line (white background) and sepia, using the same machine and process. Using the right compound some "cyano copiers" could be adapted to be used as "diazo copiers". [2]
This is an accepted version of this page This is the accepted version, checked on 2 December 2024. There are template/file changes awaiting review. Computer graphics images defined by points, lines and curves This article is about computer illustration. For other uses, see Vector graphics (disambiguation). Example showing comparison of vector graphics and raster graphics upon magnification ...
There are two chambers inside the machine. The first is the exposure area, where the sandwich of the two sheets (the master and the diazo paper) passes in front of an ultraviolet lamp. Ultraviolet light penetrates the original and neutralizes the light-sensitive diazonium salt wherever there is no image on the master.
Lenticular print showing double images and ghosting Double images on the relief and in depth. Double images are usually caused by an exaggeration of the 3D effect from some angles of view, or an insufficient number of frames. Poor design can lead to doubling, small jumps, or a fuzzy image, especially on objects in relief or in depth.
The salt print was the dominant paper-based photographic process for producing positive prints (from negatives) from 1839 until approximately 1860. Saint Michael's Church, Winterbourne, April 1859, salted-paper print, Department of Image Collections , National Gallery of Art Library, Washington, DC
Advertisement for Ansco Cyko photographic paper, 1922. Photographic paper is a paper coated with a light-sensitive chemical, used for making photographic prints.When photographic paper is exposed to light, it captures a latent image that is then developed to form a visible image; with most papers the image density from exposure can be sufficient to not require further development, aside from ...
Much greater pressure is then needed to force the paper into the channels containing the ink, so a high-pressure press is normally needed. Intaglio techniques include engraving, etching, and drypoint. In the planographic family of printing, the entire surface of the matrix is flat, and some areas are treated to create the print image. [1]