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On a side note the Vixen made Celestron newtonian's from the early to mid 80's made such claims as well, of course in comparison with the cheaper scopes from the far east. I think they were claiming this...two scopes side by side, one a premium and one a mass produced one with standard coatings clearly show visual differences at the eyepiece. I once had my Vixen/Celestron with its enhanced coatings next to a standard 6" f/5 chinese made scope and there was clearly a difference in brightness. In fact I can boldly claim that the brightness in this scope nearly equalled an 8" (well in comparison with an 8" SCT that is) so there is reason to believe that there is a difference and I believe what Dave at Obsession claims...
Darren
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