medieval photography

Dan Shapiro (dan@good.stanford.edu)
Wed, 18 Oct 95 16:01:47 -0700

I heard an amazing thing on BBC last night... a claim by two folks (Lynn
Pickett and Clyde Prince) that the shroud of Turin was a photograph made
by Leonardo da Vinci on an old tablecloth. They said lots of folks were
experimenting with optics and photographic processes at that time.

Sure is news to me! Is anyone out there willing to say *which* processes
might have been possible in the 1500s?

Dan Shapiro