April 2013
Beginner
480 pages
19h 28m
English
Content preview from Basic Photographic Materials and Processes, 3rd Edition
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Chapter 8
Filters
Photograph by Professor Glenn C. Miller, Imaging and Photographic Technology, Rochester Institute of Technology.
How Do Filters Work?
When light falls on a surface it can be reflected, absorbed, or transmitted. A common mnemonic used to remember these is RAT (see Figure 8-1). An object, such as a ball, will reflect the light that strikes it, whereas a stain glass window will do all three, reflect, absorb, and transmit the light that strikes it. The perceived color of any object depends upon the spectral quality of the reflected or transmitted light by that object. When illuminated with white light, an opaque white object will ...
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