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  1. Explore Scientific 28mm 68° field argon-purged waterproof 2" eyepiece

    $239.99
    This Explore Scientific 28mm argon-purged is a substantial 2" eyepiece that gives impressively sharp and contrasty wide field views of nebulas, compact open clusters, globular clusters, etc. with virtually any telescope that can use 2" eyepieces.
  2. Explore Scientific 68 Degree Eyepiece Kit

    $649.99
    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68° Series™ Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. 
  3. Explore Scientific 34mm 68° field argon-purged waterproof 2" eyepiece

    $319.99
    This Explore Scientific 34mm argon-purged 2" is a big eyepiece - big in size, big in weight, big in field of view, big in performance. It gives you impressively sharp high contrast images with virtually any telescope with a focal ratio of f/5 and above that uses 2" eyepieces.
  4. Explore Scientific 40mm 68° field argon-purged waterproof 2" eyepiece

    $389.99
    If you have room in your observing kit for only one long focal length wide angle eyepiece, this Explore Scientific 40mm argon-purged eyepiece may well be the one eyepiece for you.
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