The 120ED is a breakthrough in performance at this low price, offering optical quality, workmanship, and attention to detail you'd expect to find on scopes costing thousands more. If you've shied away from high-end refractors because of the cost, you should consider the 120ED. Superb apochromatic optics set the 120ED apart. The 900mm focal length (f/7.5) is great for planetary work and fast enough for faint galaxies and nebulas. FPL-53 extra-low dispersion (ED) glass in one of the two objective lens elements and multi-coating on all air-to-glass surfaces means light passes to the eyepiece or camera without color fringing. Besides providing more light-grasp for deep-sky imaging &emdash 43% more than a 100mm scope &emdash the optics easily handle high magnification. Included are a 2" Crayford-style focuser that accepts 1.25" or 2" accessories, aluminum focus knobs, and a molded-in dovetail base that accepts any Orion finder scope
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