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  1.  Astronomik - Dark Filter - 1.25"

    Astronomik - Dark Filter - 1.25"

    Do you have a CCD camera without a mechanical shutter and would like to do dark frames without continually monitoring your equipment?

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    Model#: DARK-1
    $39.95

  2. Astro Optic 1.25" CLS Filter

    Astro Optic - 1.25" CLS Filter

    Light pollution CLS Filters are designed to minimize the affects of light pollution by removing common nanometers and wavelengths found in artificial street lights in the city.

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    Model#: Q1-CLS125-01

    Regular Price: $103.99

    Special Price: $79.95

  3. Astro Optic - 2" CLS Filter

    Astro Optic - 2" CLS Filter

    Light pollution CLS Filters are designed to minimize the affects of light pollution by removing common nanometers and wavelengths found in artificial street lights in the city.

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    Model#: Q1-CLS2-01

    Regular Price: $116.99

    Special Price: $89.95

  4. Astrodon - 1.25" Gen 2 Mounted Y Filter

    Astrodon - 1.25" Gen 2 Mounted Y Filter

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

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    Model#: Y2-27R
    $200.00

  5. Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

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    Model#: C2-27R_gen2
    $140.00

  6. Astrodon - 1.25" Mounted Astrodon Gen2 I-Series LRGB Filters (set of 4)

    Astrodon - 1.25" Mounted Astrodon Gen2 I-Series LRGB Filters (set of 4)

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-I27R
    $475.00

  7. FL1-AD-xx3

    Astrodon - 1.25" Narrowband filter 3 nm FWHM

    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#: FL1-AD-xx3
    $395.00

  8. Astrodon 36mm Unmounted Gen2 E-Series LRGB (set of 4)

    Astrodon - 36mm Unmounted Gen2 E-Series LRGB Filters (set of 4)

    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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    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E36R
    $675.00

  9. 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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    FREE SHIPPING
    (48 States)
    Model#: Y2-50S
    $440.00

  10. 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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    FREE SHIPPING
    (48 States)
    Model#: Y2-50R
    $400.00

  11. Astrodon 50mm Unmounted Clear Square Filter (UV-Blocked, No NIR Blocking)

    Astrodon - 50mm Unmounted Clear Square Filter (UV-Blocked, No NIR Blocking)

    Clear optical windows Pass all frequency of light to the detector.

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    FREE SHIPPING
    (48 States)
    Model#: C2-50S
    $320.00

  12. Astrodon 50mm Unmounted Gen2 I-Series LRGB Filters (set of 4)

    Astrodon - 50mm Unmounted Gen2 I-Series LRGB Filters (set of 4)

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!  Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-I50R
    $950.00

  13. Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: C2_50R_Gen2
    $250.00

  14. Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Square Filter

    Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Square Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: C2_50S_Gen2
    $295.00

  15. Astrodon Narrowband 1.25" Mounted H-a 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted 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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    FREE SHIPPING
    (48 States)
    Model#: HA3-27R
    $490.00

  16. Astrodon Narrowband - 1.25" Mounted H-a 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted H-Alpha 5 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, 501 nm), sulfur (SII, 672nm) and others.

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    FREE SHIPPING
    (48 States)
    Model#: HA5-27R
    $330.00

  17. Astrodon - Narrowband - 1.25" Mounted NII 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted NII 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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    FREE SHIPPING
    (48 States)
    Model#: NII3-27R
    $490.00

  18. Astrodon - Narrowband - 1.25" Mounted OIII 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted OIII 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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    FREE SHIPPING
    (48 States)
    Model#: OIII3-27R
    $490.00

  19. Astrodon - Narrowband - 1.25" Mounted OIII 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted OIII 5 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, 501 nm), sulfur (SII, 672nm) and others.

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    FREE SHIPPING
    (48 States)
    Model#: OIII5-27R
    $330.00

  20. Astrodon - Narrowband - 1.25" Mounted Red Continuum 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted Red Continuum 5 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, 501 nm), sulfur (SII, 672nm) and others.

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    FREE SHIPPING
    (48 States)
    Model#: REDCON5-27R
    $330.00

Items 1 to 20 of 348 total

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