1.25mm Televue Everbrite Diagonal

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1.25mm TeleVue Everbrite Diagonal Whiter and brighter images. Simply put, that is the benefit of the Everbrite mirror coating. This exotic, dielectric, non-metallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," most natural image available. The coating is painstakingly applied to Pyrex with a surface accuracy of a 1/10 wave flatness. To ensure performance, every mirror is optically inspected under conditions far more critical than a diagonal mirror is ever used in typical telescopes. In this way, Tele Vue can guarantee that the Everbrite will permit your telescope to operate at its fullest potential. The diagonal bodies of each are machined from solid blocks of aluminum. Permanent alignment is assured. The one piece body construction also means heavy accessories can't force the diagonal body to "unscrew" from the barrel as with other brands.As the photo shows there is some ware and tear to the black coating where the diagonal fits into the scope but this is purely cosmetic.The mirror is in excellent condition with no scratches - just a few specs of dust!! Please see my other astronomical items for sale!