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#1
November 12th 04, 07:10 PM
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An Apochromat Without Fluorite
On Fri, 12 Nov 2004 16:42:32 GMT, lid
(John Savard) wrote, in part: (as opposed, say, to Seidel aberrations by supplying the bulky middle elements of a double-Gauss camera lens) - an idea due to D. S. Grey of the Polaroid corporation. John Savard http://home.ecn.ab.ca/~jsavard/index.html 
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