There is a similar calculator available from: dofMaster This site has some additional and useful information about the formulas and concepts of DOF. But the formulas used in their tools are grossly inaccurate at macro distances and even close up distances typical in table top photography. The formulas used in this script are based on Wikipedia, Norman Koren, Andrej Wrotniak, and Paul vanWalree. These all agree with each other. There is also a good tutorial on diffraction limits and the effects of digital photo-site sizes at: Cambridge In Colour. Textbook resources include Optics in Photography by Rudolf Kingslake (ISBN 0-8194-0763-1) and Applied Photographic Optics by Sidney F. Ray (ISBN 0-240-51540-4).
If you have any comments, or suggestions, I would welcome your input. Please send me an Email
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November 1, 2008
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