The oldest known photograph of the moon is a Daguerreotype taken on September 1, 1849. Samuel D. Humphrey exposed a 2 3/4" by 1 3/4" piece of silverplated copper, then developed it using mercury vapor to create the picture. Mr. Humphrey, photographer, of Canandaigua, NY, then sent photo to Harvard University which still owns it.
That is a far cry from stepping outside with a digital SLR and then to Photoshop for printing on a July afternoon 151 years later.
Full Thunder Moon will be July 25, 9:37 pm.
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