An introduction to the science & practice of photography (1895)
Jones, Henry Chapman, 1854- · London, Iliffe, Sons & Sturmey Ltd · leaf 127
VARIOUS FORMS OF LENSES. 123 … Fig. 26. In the same year C. C. Harrison patented his "globe" lens, so called because the outer surfaces of the combina- tions form parts of the same sphere, as shown in fig. 26. This lens is a symmetrical doublet, and suffers much from spherical aberration and from flare. Fig. 27. In 1864, Ross's…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
