Download e-book for iPad: Basic Photographic Materials and Processes, Third Edition by Nanette L. Salvaggio

By Nanette L. Salvaggio

ISBN-10: 024080984X

ISBN-13: 9780240809847

As a way to advance your creative abilities to the easiest of your skill, you first needs to comprehend the technological know-how and the basics of images. even if you're a scholar of images or a pro specialist, this completely up-to-date variation of the vintage textual content easy Photographic fabrics and procedures will supply all the clinical info that you simply want. complete colour all through for the 1st time, this 3rd variation covers new themes together with electronic solution, electronic sensor expertise, scanner expertise, colour administration, and tone replica. * the main entire therapy of the technology of images to be had * thoroughly up-to-date and revised to incorporate electronic strategies* complete colour all through for the 1st time * New issues lined comprise electronic solution (sensors, printers, printer paper), electronic sensor know-how, scanner expertise, colour administration, and tone replica

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Extra resources for Basic Photographic Materials and Processes, Third Edition

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Is plane polarized B. contains an equal amount of all wavelengths in the visible part of the spectrum C. consists of waves that are all in phase D. travels at twice the speed of ordinary light E. cannot penetrate ordinary window glass 11. The candela, as a unit of measurement, is based on the light emitted by . . A. a candle B. a candela C. melted platinum D. a heated blackbody 12. The illuminance at a distance of 1 foot from a light source with a luminous intensity of 10 candelas is ... A. 1 footcandle B.

Light becomes polarized when it is reflected from a flat, glossy, nonmetallic surface, such as glass, water, and shiny plastics. This effect is maximized at an angle whose tangent is equal to the refractive index of the reflecting material; this is known as the Brewster angle. For common surfaces, such as glass and water, this angle is approximately 55º from the perpendicular (35º from the surface) and is illustrated in Figure 1-17. 3. Light becomes polarized when it is transmitted through certain natural crystals or commercially manufactured polarizing filters.

The phenomenon of polarized light provides the photographer with a very useful tool for controlling light. For example, a polarizing filter will absorb light that is in one plane of polarization. If the plane of polarization of the filter and the plane of polarization of the light are the same, the maximum amount of light will be transmitted. However, if they are at right angles to each other, no light will pass, as shown in Figure 1-19. At angles between these two, varying amounts of light will be transmitted, allowing for the useful control of light.

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Basic Photographic Materials and Processes, Third Edition by Nanette L. Salvaggio

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