Response to Gigabit film?

Lippmann plates are extensively used in microlithography applications, but as far as I know they aren't made in a Panchromatic flavour, and have an equivalent ISO far lower than 25. Most of them are made to be exposed to near UV, or even hard UV, to get the best out of their potential resolving power.
A resolution of 900 lppm is a ridiculous claim for any general purpose emulsion, red and yellow light isn't capable of being focused to that spot size.

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