The New Encyclopaedia Britannica
Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries - 934 pages
 Propaedia: outline of knowledge and guide to the Britannica.--- Micropaedia: ready reference and index.--- Macropaedia: knowledge in depth.
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In its simplest form (Figure 2), the camera is a light-tight container carrying a lens,
a light-tight container Figure 2: Basic camera elements. shutter, a diaphragm, a
device for holding (and changing) the film in the correct image plane, and a ...
object Figure 3: Single-lens reflex principle. (Top) Before exposure, upright but
laterally reversed image is visible on top screen. (Bottom) During exposure, with
mirror up and shutter open, an upside down but laterally correct image is
Such defects, called aberrations, can be eliminated — and even then not
completely — only by replacing the single lens element by Groups a group of
elements of appropriate shape and separation, of lens Aberrations arising from
some of the ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review