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  1. IDAS - Hutech - 1.25" Venus Filter

    IDAS - Hutech - 1.25" Venus Filter

    This filter is used for imaging Venus (increases contrast for lower atmosphere cloud structures).

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    FREE SHIPPING
    (48 States)
    Model#: VW-1
    $495.00

  2. IDAS Hutech 1.25" Mars Filter

    IDAS - Hutech - 1.25" Mars Filter

    This filter is used to image Mars. It enhances the visibility of atmospheric water vapor clouds.

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    FREE SHIPPING
    (48 States)
    Model#: BE410
    $450.00

  3. IDAS - Hutech - AP Filter Holder with 72mm LPS Filter

    IDAS - Hutech - AP Filter Holder with 72mm LPS Filter

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    FREE SHIPPING
    (48 States)
    Model#: LPS-P2-72AP
    $365.00

  4. IDAS - Hutech - 82mm LPS Filter

    IDAS - Hutech - 82mm LPS Filter

    Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.

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    (48 States)
    Model#: LPS-P2-82
    $369.00

  5. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    (48 States)
    Model#: g'2-50S
    $440.00

  6. Astrodon - Tru-Balance E-Series Filters

    Astrodon - Tru-Balance E-Series Filters

    Astrodon Tru-Balance RGB filters have revolutionized CCD imaging. Their popularity is due to ease-of-use, high optical throughput and great resulting color for galaxies, star clusters and nebulae.  There are two varieties of Tru-Balance filters - E-Series and I-Series.

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    Model#: E Series Tru Balance

    Starting at: $450.00

  7. Baader Planetaruim - 36mm Round LRGBC Filters - UV/IR Cut L-Filter and Clear Filter

    Baader Planetaruim - 36mm Round LRGBC Filters - UV/IR Cut L-Filter and Clear Filter

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    FREE SHIPPING
    (48 States)
    Model#: FLRGBC-RD36
    $524.00

  8. Baader Planetarium - 36mm Round LRGB Filters - UV/IR Cut L-Filter

    Baader Planetarium - 36mm Round LRGB Filters - UV/IR Cut L-Filter

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    (48 States)
    Model#: FLRGB-RD36
    $477.00

  9. Baader Planetarium - 1.25" LRGBC Filters UV/IR Cut L-Filter and Clear Filter

    Baader Planetarium - 1.25" LRGBC Filters - UV/IR Cut L-Filter and Clear Filter

    Baader 1.25" RGB Filter Set with UV/IR Cut L-Filter and Clear Focusing Filter (Optically Polished) - Set of 5 filters.

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    (48 States)
    Model#: FLRGBC-1
    $427.00

  10. Baader Planetarium - 1.25" LRGB Filters - UV/IR Cut L-Filter

    Baader Planetarium - 1.25" LRGB Filters - UV/IR Cut L-Filter

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    (48 States)
    Model#: FLRGB-1
    $379.00

  11. Astrodon - 50mm Gen 2 Unmounted Square Y Filter

    Astrodon - 50mm Gen 2 Unmounted Square Y Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    (48 States)
    Model#: Y2-50S
    $440.00

  12. Astrodon - 50mm Gen 2 Unmounted Y Filter

    Astrodon - 50mm Gen 2 Unmounted Y Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    (48 States)
    Model#: Y2-50R
    $400.00

  13. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: z_s2-50S
    $440.00

  14. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: z_s2-50R
    $400.00

  15. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: z'2-50S
    $440.00

  16. Astrodon Photometric Sloan 50mm Unmounted Gen2 z' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: z'2-50R
    $400.00

  17. Astrodon Photometric Sloan 50mm Unmounted Gen2 i' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 i' Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: i'2-50S
    $440.00

  18. Astrodon Photometric Sloan 50mm Unmounted Gen2 i' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 i' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

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    FREE SHIPPING
    (48 States)
    Model#: i'2-50R
    $400.00

  19. Orion - 2" Extra-Narrowband Oxygen III Filter

    Orion - 2" Extra-Narrowband Oxygen III Filter

    If you're using a monochrome CCD camera like Orion's Parsec 8300M, these specialized "line" filters are the perfect complement. Orion's 2" Oxygen-III Filter has a full-width half maximum (FWHM) bandpass of just 7nm, ensuring high-contrast images, even in heavily light-polluted or brightly moonlit skies. The filter can be used separately or in combination with a filter wheel for advanced tri-color imaging of emission nebulae.

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    Model#: 05545
    $359.95

  20. IDAS - Hutech - LRGB set (31mm unmounted) for QSI 500 series

    IDAS - Hutech - LRGB set (31mm unmounted) for QSI 500 series

    Hutech LRGB filter set for QSI 500 series cameras.

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    FREE SHIPPING
    (48 States)
    Model#: RS-31
    $575.00

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