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Mezzotint

As explained in How Computers Make Books

Mezzotint is an intaglio technique that roughens a plate to create an ink-holding dark field and burnishes selected areas to produce lighter tones.

How can a print show a soft gray shadow rather than only hard black lines? Mezzotint begins with a copper plate made rough all over. The tiny indentations hold ink, so a fully prepared plate prints as an almost entirely black image. Its name comes from Italian for “half-painted.” section 8.2

The image is made by taking ink away from selected places. A rocker roughens the plate; then burnishing tools flatten areas of copper where less ink is wanted. Burnish a little for gray, or more for a lighter area. This gradual control makes shaded tones easier to suggest than with sharply cut engraving lines. section 8.2

Figure 8.10 Wiping excess ink from a mezzotint plate. (Photo courtesy of David Ladmore)

A prepared plate is wiped before printing; its rough surface retains ink in the recessed marks. section 8.2

A finely graded print

“Sunshine Falling on a Door” demonstrates the fine reproduction of gray tones that mezzotint can produce. The trade-off is durability: copper is soft, and its small indentations wear down under printing pressure, so impressions fade in quality over repeated pressings. section 8.2

How How Computers Make Books covers it

How deep it goes
Explains plate roughening, ink retention, gradual burnishing, and wear, without detailing tool operation.
Examples
Uses a wiped mezzotint plate and Peter Ilsted’s “Sunshine Falling on a Door” print.
What it assumes
Teaches the basic ink-and-plate mechanism from zero.
What you can do after
Evaluate/understand how roughness and selective flattening produce black, gray, and light areas.
How it connects
Connects intaglio printing with engraving, burnishing, copper plates, and etching.

This explainer was generated by Manning's knowledge graph from the text of How Computers Make Books. The section links point to the parts of the book it draws on.