Below you may find the In the 1830s this Frenchman developed a new photo process that cut exposure time from 8 hours to less than 30 minutes which is part of the Jeopardy Archive. In case the question or answer is wrong or something is missing do not hesitate to contact us and we will be glad to help you out. This question was last seen on October 4 2021 Jeopardy! TV Game Show.

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