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Meade ETX 90-125
Explore Scientific 2" 99% Reflectivity Diagonal
Argon atoms are “ larger” than that of Nitrogen and therefore they are less likely to “leak” or diffuse their way through the seals over the life of the eyepiece
SKU: FW-05SHa-04SNa-2CaK
all Quantum Filters are made-to-order
Explore Scientific 2" Diagonal Mount Type_Dobsonian Meade ETX 90-125Explore Scientific 2" 99% Reflectivity Diagonal Introducing this High quality and functional 2" 99% Reflectivity Diagonal by Explore Scientific. This comes complete with 1. 25 inch Adapter and dust covers. Solid and lightweight, this first surface coated diagonal mirror reflects 99% of the light to help keep the brightest possible telescope's image. The insert barrel is a double taper so that it can be smoothly added or withdrawn from the focuser. The
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