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  1. elkcub

    Question on the 10x30 IS

    And I had completely forgotten about the Orniwelt system. I should look into buying one. Thanks for providing the web site. :t: Ed
  2. elkcub

    Question on the 10x30 IS

    Thanks, Henry. It's really interesting that the notion has surfaced on several occasions, but not taken legs on a general basis. Some high-end manufacturer could develop a system that would allow interchanging dioptrix-like lenses within their product line. Thinking big, I also imagine that a...
  3. elkcub

    Question on the 10x30 IS

    Hi Peter, No, this has nothing to do with field flatteners, which correct for curvature of field in binoculars. These "sight correction" lenses were strictly designed to correct for visual astigmatism, like eyeglasses do, and should also not be confused with correcting the binocular's optical...
  4. elkcub

    Question on the 10x30 IS

    All, I just received an email from Peter Abrahams with these three pages attached from Zeiss' 1923, 1928, and 1931 catalogs. During that period of at least 8 yrs., sight correcting accessory lenses could be obtained from Zeiss at additional cost and were primarily oriented to astigmatism...
  5. elkcub

    Question on the 10x30 IS

    Hi Kimmo, I don't think the idea is silly at all, ... particularly since I suggested it several times in the past. However, I do admit to thinking it silly for me to bring up again since no one commented on it the first two or three times. :eek!: As a coincidence, I just posted Peter...
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