December 2015
Intermediate to advanced
554 pages
21h 11m
English
Content preview from Langford's Basic Photography, 10th Edition
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Chapter Three Lenses and Filters
Having been introduced to the fundamentals of how lenses create images, we can now explore the ways that the controls on a camera lens allow you to alter the image. The principal control is the aperture (commonly referred to as f-number). The aperture adjusts how much light is let in, how much of the scene is in focus, and how sharp the areas in focus actually are. It is very important in image making to know when and how to create total sharpness, or to localize image detail.
Photographic Lenses
As we have seen, a simple glass lens creates a higher quality image (in terms of sharpness) than ...
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