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sulsapj

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About sulsapj

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    optician
  1. Does anybody remember a line of stock lenses called Geolens that seemed to have been short-lived in the early to mid nineties? I don't recall the refractive index but they were relatively quite thin (similar to poly) when compared to CR-39 and boasted an Abbe value of 59 (if my memory serves me correctly). They also gummed up edging wheels like crazy.
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