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36mm Filters

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  1. Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

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    (48 States)
    Model#: HA3-36R
    $650.00

  2. Astrodon - Narrowband - 36mm Unmounted Red Continuum 5nm Filter

    Astrodon - Narrowband - 36mm Unmounted Red Continuum 5nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm) and others.

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    (48 States)
    Model#: RedCon5-36R
    $435.00

  3. Astrodon - 36mm OIII 5nm Narrowband Filter - Unmounted

    Astrodon - 36mm OIII 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 5nm filter. Setting a new bar of performance and durability for imaging and research. ... Learn More
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    (48 States)
    Model#: OIII5-36R
    $435.00

  4. Astrodon - 36mm H-Alpha 5nm Narrowband Filter - Unmounted

    Astrodon - 36mm H-Alpha 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon H-Alpha Narrowband 36mm Unmounted Filter. ... Learn More
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    (48 States)
    Model#: HA5-36R
    $435.00

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