Low Temperature Lens (Process Recording)

Hi All,

I have a client that wants to record their industrial process. The issue is that the temperature of the process may eventually get down to -100C (-148F) and, to no one's surprise, things tend to get brittle and break at super low temps.

Does anyone know of any lenses, preferably pinhole, that are rated for a low temperature? It does not have to be -100C, but anything below -20C or -40C would be a good start.

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