There are many ways for telescope users to sharpen up images of the stars and the planets in the night sky. The ShortTube 80 Refractor Telescope OTA measures 15" in length and its fixed aluminum dew shield extends 3-1/4" out from the objective lens, preventing dew formation and blocking off-axis glare. This 70mm Refractor is a Doublet ED APO Refractor, offering a stellar FPL51 Objective Lens for in one of our most compact sized telescopes. 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