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Orion Edge-On Planetary Eyepieces bring flat-field performance to solar system viewing in the form of high-magnification focal lengths.
Each employs a sophisticated 7-element lens design reminiscent of exotic, high-priced oculars to provide a sharp focus all the way to the edge of their wide 55-deg apparent field of view.
The barrel distortion and field curvature aberrations common in standard telescope eyepiece designs are virtually gone. Edge-On Planetary eyepieces let you push the power, whether you're canvassing the lunar terminator or studying the Jovian cloud belts. The 7-element optics are fully multi-coated for high light transmission, and each eyepiece has 20 mm eye relief for viewing comfort. Other nice touches: blackened telescope lens edges, pop-down rubber eyeguards, and barrels threaded for 1.25" filters.
