18mm Orion Epic ED-2 Telescope Eyepiece

18mm Orion Epic ED-2 Telescope Eyepiece
by Orion

List Price: ~~$72.99~~
Category: Digital Camera
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Digital Photo Product Details

Manufacturer: Orion
Product features:

Six-element lens design includes two elements of special ED glass for superior image quality
Luxuriously long 20mm eye relief at all focal lengths
Wide 55-degree apparent field of view
Fully multi-coated optics ensure excellent image brightness and contrast
Barrel diamter 1.25". Threaded for filters. One-year limited warranty

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Description of 18mm Orion Epic ED-2 Telescope Eyepiece

Enjoy comfortably long eye relief, a wide 55-degree apparent field of view, and fully multi-coated, 6-element optics that include two elements crafted from special ED glass. ED stands for "extra-low dispersion," optical glass that boasts superior refractive properties compared to standard optical glass. The result is 20mm eye relief for every focal length, reduced chromatic aberration, and excellent image sharpness. Even the short-focal-length Epics sport nice, wide eye lenses, not small peep-holes! The series is parfocal, so little or no refocusing is needed when switching from one Epic eyepiece to another. Each eyepiece comes with two end caps and a durable plastic tube case. Barrel diameter, 1.25". Threaded for filters.