37:16
The Birth of Photography: Drawing With Light (and silver iodide)
Technology Connections
27:02
Making Film Reveal its Image: the B&W Development Process (Photography Part 2)
40:28
A Backwards Camera in a Dark Room - Photographic Printing
26:33
The Autochrome; Color photos? Just add potatoes.
25:11
This 1960's camera is powered by light and completely automatic