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GlennLeDrew
professor emeritus
Reged: 06/18/08
Posts: 620
Loc: Ottawa, Ontario, Canada
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Re: huge 110mm russian binoculars (pic)
06/19/08 01:56 AM
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At NEAF in 2002 I looked through a pair and was astonished at the prominent yellowish cast. It didn't appear as though there were yellow filters in place, either. Many other Russian optics I've used delivered yellowish images as well, and there absolutely were no filters causing it. I think some glass types they use(d) did at least some of this, as well as the choice of coating thickness (hence transmission color.)
To me, the most impressive aspect of these beasties was the huge apparent field of view.
-------------------- Home-made 11X50 right angle bino, 8.1 deg. FOV
Modified 26X100 bino, 3.5 deg. FOV
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