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  1. FrankD

    ED glass usage in PORROS

    I will let one of the others get all technical. My experience is that, yes, porro prism binoculars, general, do tend to display less CA than their roof prism counterparts.
  2. FrankD

    ED glass usage in PORROS

    Brock, Just out of curiousity, why do you think they won't have ED glass at that price point? We have seen a number of ED glass roofs at that price point and slightly below...Bushnell Legend Ultra, Pro Optic, Zhumell, etc.... I have always heard that it is less expensive to make a porro than a...
  3. FrankD

    ED glass usage in PORROS

    Isn't there a Williams Optics model...7x50 maybe...that has ED glass in the design?
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