Handbook of the practice and art of photography (1875)
Vogel, Hermann Wilhelm, 1834-1898, Molling, Edward F · Philadelphia, Benerman & Wilson · leaf 83
show so much spherical aberration as to make the picture useless. The consequence is that it is inferior in light to the previously de- scribed lenses, but excellent in other respects. The small stop excludes a large quantity of light which strikes the open front lens, and only a small portion… … gle of 75°. The Ross Doublet shows equal capabilities ; its construction, how- ever, is different from that of the Globe lens. Busch, in Rathenow, has constructed an instrument similar to the Globe lens, which surpasses the latter lens in the size of the picture, and the picture shows the…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
