Ken ShirriffIn the 1960s, this absurdly large camera was used to make masks for integrated circuits. The layers of the integrated circuit were drawn at large scale and then optically shrunk to make the glass masks that were used in manufacturing.
MacBalance@kenshirriff We had broadly similar gear in the small tech college I attended. Finally removed around 1997 or so: used for creating negatives of print graphics layouts that could be used to make plates for printing.
Jonathan HendryYeah my high school had one about half that size in the printing / photography / graphic arts classroom
@jonhendry @kenshirriff We also had some sort of analog “scanner” for negatives. Spinning drum (are drum scanners a thing still?) and some basic exposure controls but no controlling computer.
I wish I had a pic: it really looked like a prop from the original Star Trek.
We had one of them optical typesetters that used negative film discs of fonts, with the letter forms projected onto light-sensitive paper.
JP Kollhøj