[bitminer]

Interesting. I did some (IT) work for a company making photo plotters for the PCB industry. The MDA Fire 9000, later Cymbolic Sciences and other companies. This was about 1985.

They had a minicomputer with a hardware rasterizer driving a laser writing to photosensitive film. They had amazing throughput for the day.

One of the issues was temperature and humidity stability of the film. It would change dimensions with as little as 10% change in humidity.

The change was more than the resolution of the laser.