Meniscus Lens
Crown glass
Flint glass
Achromatic doublet
This early-spring image was captured with a classic single element lens, convex on one side and concave on the other. Invented in 1804 by William Hyde Wollaston as a lens for eyeglasses, he adapted it as a camera obscura lens in 1812. Later the design was used by Niépce and Daguerre in their early photographic cameras.
“I have captured the light and arrested its flight. The sun itself shall draw my pictures.” – Louis Daguerre