Hello Richard,
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I was ready to by the standard orthos, but then read about the HD orthos which pushed the price up close to the Televue Plossls.
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since both are made in Japan the HD Orthos should be more expensive than the TV Plössl.
The TV Plössl with it`s 2 cemented achromatic doublets is a simplier design than the U.O. Ortho
(both HD and conical top) with the cemented triplett and one single lens.
So the Plössl should be cheaper to manufacture than the Ortho, all other things
(coatings, polishing quality, glass quality) being the same.
Enjoy your new eyepieces, Karsten
