Buy Cheap! 3.0mm Orion Edge-On Planetary Eyepiece
( Product Infomation Posted On Time : Mar 26, 2012 14:15:37 View Last Update Infomation At Amazon)
Edge-On Planetary eyepieces bring flat-field performance to solar system viewing in the form of three 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-degree apparent field of view. The barrel distortion and field curvature aberrations common in standard 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 20mm eye relief for viewing comfort. Other nice touches: blackened lens edges, pop-down rubber eyeguards, and barrels threaded for 1.25" filters. Barrel diameter: 1.25".
3.0mm Orion Edge-On Planetary Eyepiece 
- 3mm high-magnification 1.25" eyepiece designed for exceptional planetary and lunar viewing
- Flat field design ensures sharp focus out to the edge of the wide 55-degree apparent field of view
- Edge-On eyepiece design eliminates barrel distortion and field curvature commonly seen in standard eyepiece designs
- Each Edge-On Planetary eyepiece has long 20mm eye relief for comfortable viewing even with eyeglasses on
- Ideal eyepiece for high-power viewing of the planets and Moon
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