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  1. Explore Scientific 8.5mm LER 82° field argon-purged waterproof 1.25" eyepiece

    $269.99
    This 8.5mm Explore Scientific LER 82° field argon-purged waterproof eyepiece is the right focal length to give you very useful exit pupil sizes and magnifications with all scope types and focal ratios - f/10 Schmidt-Cassegrains, short focal length f/6 refractors, and f/4.5 Dobsonian reflectors alike.
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