This shows off the ground glass which "slices" across the virtual image formed by the lens, "samples" the image, and shows it on the visible side of the ground glass. Gundlach Korona, circ. 1905, with a 1980s lens of good construction and design (Tessar formula).

This shows off the ground glass which "slices" across the virtual image formed by the lens, "samples" the image, and shows it on the visible side of the ground glass.

Gundlach Korona, circ. 1905, with a 1980s lens of good construction and design (Tessar formula).
#goundglass #korona #Gundlach #8x10