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Filters

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  1. SBIG - Filter Wheel for 8300 for 36mm filters with ASTRODON 36mm LRGB Filters

    SBIG - Filter Wheel for 8300 for 36mm filters with ASTRODON 36mm LRGB Filters

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FW5-8300_LRGB-E36R
    $1,195.00

  2. Optec - Astrodon UBRcIc filter set, 50mm diameter, 3mm thick.

    Optec - Astrodon UBRcIc filter set, 50mm diameter, 3mm thick.

    UVBRI filters have been the standard for photometric measurements for decades. They ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 19430
    $1,600.00

  3. FLI - Research Grade 50mm Diameter UBVRI filters

    FLI - Research Grade 50mm Diameter UBVRI filters

    RG 50D UBVRIFLI Research Grade filter sets are par focal to F4.5 (individual filters are also available, contact FLI)Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 5mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D UBVRI
    $1,495.00

  4. FLI - Research Grade 50mm Diameter LRGB filters

    FLI - Research Grade 50mm Diameter LRGB filters

    RG 50D LRGBFLI Research Grade filter sets are par focal to F4.5 (individual filters are also available, contact FLI)Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 3mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D LRGB
    $1,195.00

  5. Astrodon - Narrowband - 50mm Square SII 3 nm Filter

    Astrodon - Narrowband - 50mm Square SII 3 nm Filter

    Narrowband FiltersNarrowband (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 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-50S
    $1,095.00

  6. Astrodon - Narrowband - 50mm Square OIII 3 nm Filter

    Astrodon - Narrowband - 50mm Square OIII 3 nm Filter

    Narrowband Filters      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, ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII3-50S
    $1,095.00

  7. Astrodon - Narrowband - 50mm Square H-a 3 nm Filter

    Astrodon - Narrowband - 50mm Square H-a 3 nm Filter

    Narrowband Filters      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, ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-50S
    $1,095.00

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