| He has also made a study of human vision and how it relates to reproducible color in photography and photomechanical reproduction. |
| And when working on silkscreens, Close insisted on creating the stenciled image by hand rather than by the photomechanical process commonly used. |
| Photomechanical reproductions are photographs that are printed in ink from plates produced by a bewildering variety of photomechanical, photochemical and photogalvanic means. |
| One was the capacity for inexpensive photomechanical reproduction. |
| Beginning in the late 1890s, the new photomechanical process of halftone printing contributed to an astounding growth of illustrated mass-market newspapers and magazines. |
| A photomechanical or digital process is used to re-create the image, which is run on a high-speed, automated press. |
