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Studio cameras were scaled down to hand-camera size and were fitted with
improved lenses (particularly the lens designed by an Hungarian mathematician,
Jozsef Miksa Petzval, in 1840) and with more versatile shutters (the first leaf -type
Basic camera functions. 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 ...
They plug into a rotating fitting in the camera, flash which has the necessary firing
circuit and battery built-in, cubes After every shot, the cube rotates to point a fresh
bulb at the subject. Some flash cubes are triggered mechanically and need no ...
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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
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For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review