Orion 12.5mm Edge-On Flat Field Planetary Eyepiece - 1.25"

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  • Regular price $99.99
  • Orion 12.5mm Edge-On Flat Field Planetary Eyepiece - 1.25"

    • Sale
    • Regular price $99.99
    • ITEM #

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    Orion 12.5mm Edge-On Flat Field Planetary Eyepiece - 1.25"

    Orion Edge-On Flat Field 12.5mm Eyepiece

    With most eyepieces, stars look sharp in the center of the field of view, but start getting fuzzy and flared toward the edge. To get better, "flat-field" performance, you have to pay big bucks for exotic ocular designs. Not anymore. Orion Edge-On eyepieces deliver remarkably flat fields ƒ??????????? pinpoint-sharp stars from the center to the edge of the viewing circle. And best of all, their price won't flatten your wallet!

    You'll be as amazed by the value as you are by the views. Their 5- or 6-element optical design eliminates field curvature for distortion-free images. And Edge-Ons are parfocal, so you can change eyepieces without refocusing. With their big eye lenses, fully multi-coated lens elements, long eye relief, generous fields of view, twist-up eyeguards, and 1.25" barrels threaded for filters, Edge-On eyepieces have the features and quality you'll appreciate. Get the eyepieces with a flat-field edge ƒ??????????? Orion Edge-Ons!

    Orion Edge-On Flat Field Eyepiece Features...

    • Orion Edge-On Flat Field Eyepieces offer premium performance at an amazing price!
    • The proprietary flat-field design means you'll experience sharp focus from the very edge to the center of the viewing field.
    • The Orion Edge-On Flat Field Eyepiece features multi-coated optics, all-black anodizing, twist-up eye guards, and a parfocal design.
    • The large eye lens and long eye relief of 20mm means comfortable viewing, even for long observing sessions and for folks who wear glasses.
    Orion Product Number: 8882

    Additional Information

    Case IncludedNo
    Dust Caps IncludedYes
    Eye Guard IncludedYes
    Eye Relief19mm & Up
    Eyepiece Apparent FOV55 degrees
    Eyepiece Eye Relief20mm
    Eyepiece Special FeatureNone
    Field Stop15.6mm
    Focal Length12.5mm
    Lens Elements & Groups6 elements
    ModelOrion Edge On
    Optical DesignWide Angle
    Warranty1 Year Warranty

    Questions & Answers

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    • I have a f/5 dobsonian and I have to be really careful with descriptions provided because they are probably written for long focal scopes . Very seldomly, do they claim to work as well for short fast focal lengths..

      As an owner of a 12" f/5 dob myself, I agree. f/5 or faster light cones separate the well-corrected widefield eyepieces from those that can't handle coma. A coma corrector is always the best option long term, as this allows nearly any eyepiece to be us