Welcome to my blog, I'm Charles Johnson - a scientist and an amateur photographer. This site is devoted to all aspects of science related to photography. For more information read my About page.

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Charles S. Johnson, Jr.
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Comments[0] 10:08AM Aug 08, 2009 by Charles in General
The discount code is scheduled to end on August 15. Please refer to the July 17 posting for the code, information, and links to excerpts from the book.