Explore Scientific ED 80 Classic White Essential Series f/6 Air Spaced Triplet Refractor Telescope. This telescope created by the product experts at Explore Scientific features an air-spaced triplet optical design that virtually eliminates chromatic aberrations and generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces. The Explore Scientific ED 80 Classic White Essential Series f/6 Air Spaced Triplet Refractor Telescope comes with a carbon fiber optical tube assembly that reduces weight and eliminates focus change attributed to shrinking or expansion caused by temperature fluctuations. With true diffraction-limited optics and sized to encourage spontaneous stargazing sessions the Explore Scientific ED 80 Classic White Essential Triplet APO Chromatic Refractor Telescope is the perfect grab-and-go instrument for exploring the night sky. Specifications for Explore Scientific ED 80 Classic White Essential Series Triplet Refractor Telescope: Manufacturer: Explore Scientific Color: White/Black Package Contents: Explore Scientific ED 80 Classic White Essential Series Triplet Refractor Telescope Explore Scientific ES-ED0806-02: ED 80 Classic White Essential Series f/6 Air Spaced Triplet Refractor Telescope