Alan Chan http://www.pbase.com/wlachan
I haven't looked at the diagram for these lenses... but a lens diagram that contains a figure for each element and does not have precise measurements, curvatures and more than I care to mention, amounts to nothing but a pretty picture if you're trying to determine if two lenses are indeed of the exact same design.
It's like drawing a top down diagram of a 4-door, 4-cylinder, 4-wheeled automobile. They'll all look the same.
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