The sciopticon manual. Explaining Marcy's new magic lantern, and light, including magic lantern optics, experiments, photographing and coloring slides, etc (1874)
Marcy, L. J · [Philadelphia] Sherman · leaf 149
140 SCIOPTICON MANUAL. "The accompanying rude drawing will give yon some idea of the plan. " The front A and the rest B are … Fig. St. render the image visible, like the focu s- ing ground-glass in a photographer's camera; this rough- ing also gives it a " tooth " to hold the markings. Ground-glass itself is sometimes used for obtaining drawings by superposition, which is rendered transparent by a coat of varnish, and it…
Lantern projection · Slides (Photography)
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
