Hot Metal Typesetting - Comparison To Successors

Comparison To Successors

The nature of text printed via the hot-metal method is notably different from that produced by the phototypesetting processes that followed it. As the lead type used to print (letterpress) a page had been directly formed from the type matrix a good fidelity to the original was achieved. Phototypesetting suffered (at least in its early days) from many problems relating to optical distortion and misalignment. These disappointing results were a thorn in the sides of many authors and readers (especially of complex or mathematical texts that had many small sub and superscripts). A desire to re-create the aesthetic qualities of hot lead spurred Donald Knuth to create one of the first general purpose digital typesetting programs, TeX.

Although strictly speaking not typesetting, stereotyping (electrotype or nickeltype) could be used to cast a reproduction of an entire typeset page (or pages imposed in a forme) using a mold made with an impression using flong (similar to papier-mâché). The ensuing casting could be made curved for use on a rotary press or flat for the slower flat bed presses. This technique was often used in newspaper production.

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