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BillC
on a new path
Reged: 06/04/04
Posts: 2237
Loc: Washington, USA
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Re: ED glass in binoculars
07/02/09 12:12 PM
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It is too bad that we are SOOOOO trusting that with take popular buzzwords to be of GREAT value.
WE take "ED Glass, BaK4 prisms, semi-apochromatic, Multi-coated . . ." to mean better viewing. Not one word is said about the dozens of OTHER features that go into making a good instrument.
Because "aspheric lenses" are used in a particular instrument, does it mean the aspheres were calculated correctly, make correctly, or made with the composition of the OTHER elements having been taken into consideration.
Let's get REAL here. Good binoculars are made from the sum of their design concepts and parts--not the coolness of their buzzwords!
Cheers,
Bill
--------------------
William J. Cook, Chief Opticalman, USNR-Ret.
Founding Editor, Amateur Telescope Making Journal
20-year vet. of Captain's Nautical Supplies, Optics Dept. Mgr.
Optics Machanic, WG11-3306, Ft. Lewis, Tacoma,WA
Yata, Yata, Yata . . .
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