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): 67mm Focal Length: 1270mm Focal Ratio: f/5 Resolving Power: 0
80mm APO Triplet Refractor Telescope (Optical Tube Assembly)
The Interference Eliminator solves this problem by tilting the camera off normal while keeping the center of the image sensor stationary
2X telecentric barlow teleconverter lens fully optimized in coatings and optical design specifically for the Hydrogen Alpha wavelength
Astrozap Dust Cover For 8" Dobsonians Dew Shields By Size_16” ): 67mm Focal Length: 1270mmAstrozap Dust Cover ForMeade & Skywatcher Dobsonians Made from lightweight breathable black fabric. Elastic bands ensure a good fit. Keeps dust off secondary and primary mirrors. Dust covers will fit on both the upper and lower tube assemblies. Made in the USA! Astrozap Dust Cover Sizes: 6 fits 8" diameter tubes 8 fits 10" diameter tubes 10 fits 12" diameter tubes 12 fits 14" diameter tubes 14 fits 16" diameter tubes 16 fits 18" diameter tubes