A photograph is taken through a screen (glass or digital) containing a grid of dots.
Before autotypy was perfected in the late 19th century, images in newspapers and books were produced via expensive, slow hand-engraving or woodcuts. Autotypy allowed newspapers to display timely photographs, drastically changing journalism and advertising. Autotypy in the Digital Age autotypy
By varying the size of the dots—larger dots for dark areas, smaller dots for light areas—a complete range of tones can be simulated. The Mechanism A photograph is taken through a screen (glass