Photographic optics and colour photography : including the camera, kinematograph, optical lantern, and the theory and practice of image formation (1909)
Johnson, G. Lindsay (George Lindsay), 1853-1943 · New York : D. Van Nostrand Co. · leaf 206
178 PHOTOGRAPHIC OPTICS inverted laterally. The image that one sees is not this one, but a very slightly enlarged virtual image formed by the mirror M a little further away. It is also erect and laterally inverted. The … dotted arrow indicates the position the image would have if the mirror were removed. It is real inverted, as well as laterally so, and is at the common principal focus of L2 and L2. The image is very brilliant and does not require to be screened from the light as does the ground-glass image, but…
Photographic optics · Color photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
