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  1. Astronomik 6 nm OIII MFR Narrowband Filter - 50mm Round Unmounted

    Astronomik - 6nm OIII MFR Narrowband Filter - 50mm Round Unmounted

    The OIII line (501 nm) is located in the blue-green portion of the spectrum, making them very suitable for observing most planetary nebulae and supernovae remnants and other objects with doubly ionized oxygen.

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    (48 States)
    Model#: OIIICCD6-50R

    Available - Ships in 2-4 Days

    $449.95

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