Sky-Watcher Pro SW 80ED 80mm Refractor Telescope

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The Skywatcher Pro SW 80ED APO 80mm ED Refractor Telescope produces the sharpest, highest quality imaging obtainable from any telescope optical design due to the unobstructed textbook-like diffraction patterns and exotic optical properties. The Skywatcher ED-APO 80mm is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. It is well suited for wide-field astronomical observation of prominent nebulae, star clusters and galaxies from a dark-sky location, or can be used as an astrograph for sky photography. As a terrestrial spotting scope or telephoto lens, the ED-APO s performance is absolutely superb. Ultra high contrast allows the subtlest of details to be easily scrutinized under conditions of good seeing. The petite silhouette of the SW ED-APO 80mm makes for an excellent compact, portable telescope that travels light and fits a small space. At about 50-power structural detail becomes apparent in the solar system s gas giants like Saturn and Jupiter. The Moon also exhibits striking crater detail along the lunar terminator. As an astrograph, the SW PRO 80ED delivers superb performance imaging a wide spectrum of astronomical phenomenon. In a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror, or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors. Skywatcher ED-APO refractor provides the finest images obtainable-bar none-in their design class. Skywatcher ED apochromatic refractor delivers dramatic coal-back skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Skywatcher ED-APO refractor is the logical choice as an investment in advanced instrumentation for exceptional viewing or photography. The Skywatcher ED-APO design assures virtual elimination of secondary, residual false color normally present in 2-element achromatic lens designs using Crown and Flint glass. Skywatcher APO refractors utilize a second lens element made from the mineral fluorite instead of Flint glass. Fluorite, CaF2, is a halide with unique properties and a hardness of only four. It is an exotic and difficult material to fabricate into a lens.