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  1. H

    Kowa TSN-88 tweaks

    Go to 3:30 on this video. My reading is that the new coatings were first introduced on the 99 and are now being used on the new 88.
  2. H

    Kowa TSN-88 tweaks

    Hi Tom, If you look at the complete Kowa line of scopes you'll find 66mm and 77mm Prominars. Those use some unidentified type of ED glass instead of Fluorite crystal. The Prominar Official Brand Website above appears to include only Prominar models that use Fluorite...
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