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  1. Baader Planetarium - 65mm Square LRGB Filters - UV/IR Cut L-Filter and Clear Filter

    Baader Planetarium - 65mm Square LRGB Filters - UV/IR Cut L-Filter and Clear Filter

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    FREE SHIPPING
    (48 States)
    Model#: FLRGBC-SQ65
    $1,029.00

  2. 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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    (48 States)
    Model#: VW-1
    $495.00

  3. 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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    (48 States)
    Model#: BE410
    $450.00

  4. IDAS Hutech 52mm UV/IR Blocking Filter

    IDAS - Hutech - 52mm UV/IR Blocking Filter

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    Model#: UIBAR-52
    $179.00

  5. IDAS - Hutech - 48mm (for 2") UV/IR Blocking Filter

    IDAS - Hutech - 48mm (for 2") UV/IR Blocking Filter

    "A chain is only as good as its weakest link." This well-known truth applies to many "chains", including the optical chain, which includes a telescope, eyepiece, and filter.

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    Model#: UIBAR-48
    $179.00

  6. IDAS Hutech 28.6mm (for 1.25") UB/IR Blocking Filter
  7. 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

  8. IDAS - Hutech - SCT Filter adapter with 48mm LPS Filter

    IDAS - Hutech - SCT Filter adapter with 48mm LPS Filter

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    (48 States)
    Model#: LPS-P2-48SCT
    $265.00

  9. 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

  10. IDAS - Hutech - 72mm LPS Filter

    IDAS - Hutech - 72mm LPS Filter

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    (48 States)
    Model#: LPS-P2-72
    $299.00

  11. IDAS - Hutech - 52mm LPS Filter

    IDAS - Hutech - 52mm LPS Filter

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    Model#: LPS-P2-52
    $189.00

  12. IDAS - Hutech - 48mm (2" eyepiece) LPS Filter

    IDAS - Hutech - 48mm (2" eyepiece) LPS Filter

    48mm (2'"' eyepiece) LPS filter

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    Model#: LPS-P2-48
    $189.00

  13. IDAS - Hutech - 28.6mm (1-0.25" eyepiece) LPS filter (formerly part #LPS-P31.7)

    IDAS - Hutech - 28.6mm (1-0.25" eyepiece) LPS filter (formerly part #LPS-P31.7)

    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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    Model#: LPS-P2-28.6
    $179.00

  14. IDAS Hutech SCT Filter adapter w/48mm Nebula Filter II

    IDAS - Hutech - SCT Filter adapter w/48mm Nebula Filter II

    The IDAS LPS-V4 filter is designed to provide maximum contrast between key astronomical emission lines and a light polluted sky. These filters incorporate IDAS MBT, UFP, and IGAD technologies to insure undegraded and extremely durable optical performance.

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    FREE SHIPPING
    (48 States)
    Model#: LPS-V4-48SCT
    $275.00

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

  16. TO - Full Aperture R-G Solar Film Filters

    TO - Full Aperture R-G Solar Film Filters

    The R-G Solar film by Thousand Oaks Optical now brings superior solar imaging to the amateur astronomer. The question may come up as to why? R-G Solar Film emphasizes more on the natural yellow and orange colors of the Sun which is what makes the viewing so extraordinary. Last but not least, R-G Solar Film offers high resolution even at high magnification!

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    Model#: RG Full Aperture

    Starting at: $49.00

  17. 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

  18. Baader Planetarium - 65mm  Square LRGB Filters - UV/IR Cut L-Filter

    Baader Planetarium - 65mm Square LRGB Filters - UV/IR Cut L-Filter

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    FREE SHIPPING
    (48 States)
    Model#: FLRGB-SQ65
    $949.00

  19. Baader Planetarium - 50mm Square LRGB Filters - UV/IR Cut L-Filter and Clear Filter

    Baader Planetarium - 50mm Square LRGB Filters - UV/IR Cut L-Filter and Clear Filter

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    FREE SHIPPING
    (48 States)
    Model#: FLRGBC-SQ50
    $849.00

  20. Baader Planetarium - 50mm Square LRGB Filters - UV/IR Cut L-Filter

    Baader Planetarium - 50mm Square LRGB Filters - UV/IR Cut L-Filter

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    FREE SHIPPING
    (48 States)
    Model#: FLRGB-SQ50
    $789.00

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