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type of glass in old Kodak meniscus closeup lenses?
Series IV (+3) and Series W (+1-3/4) closeup lenses
I am doing some experiments and want to also do some simulations in either Oslo or Zemax demo versions. Would anyone have a clue what type of glass (index of refraction) they were made of? I gather some generalizations migh tbe possible like crown vs flint for meniscus, but they might only apply where mixed glass tpyes are used for achromatizing. Thanks Murray |
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