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  1. Astrodon 65mm Unmounted Gen2 E-Series LRGB Square Filters (set of 4)

    Astrodon - 65mm Unmounted Gen2 E-Series LRGB Square 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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    Model#: LRGB2-E65S
    $2,050.00

  2. Astrodon 65mm Unmounted Gen2 E-Series LRGB Square Filters (set of 4) with 5 nm H-a Filter

    Astrodon - 65mm Unmounted Gen2 E-Series LRGB Square Filters (set of 4) with 5 nm H-Alpha Filter

    The E-Series is designed for the red-sensitive Kodak full-frame detectors with the goal of equalizing the fluxes, and hence, the signal-to-noise, for the red, green and blue filters.

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    Model#: LRGB2HA5-E65S
    $3,150.00

  3. Astrodon - Narrowband - 65mm Unmounted H-Alpha 5 nm Square Filter

    Astrodon - Narrowband - 65mm Unmounted H-Alpha 5 nm Square 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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    Model#: HA5-65S
    $1,050.00

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

    Astrodon - Narrowband - 36mm Unmounted 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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    Model#: HA5-36R
    $435.00

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

    Astrodon - Narrowband - 36mm Unmounted 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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    Model#: OIII5-36R
    $435.00

  6. Astrodon - Narrowband - 36mm Unmounted SII 5 nm Filter

    Astrodon - Narrowband - 36mm Unmounted SII 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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    Model#: SII5-36R
    $435.00

  7. Astrodon Gen2 E-Series LRGB (set of 4) Mounted in 31mm Inserts

    Astrodon - Gen2 E-Series LRGB (set of 4) Mounted in 31mm Inserts

    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#: LRGB2-E31R
    $525.00

  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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    Model#: LRGB2-E36R
    $675.00

  9. Astrodon 1.25" ExoPlanet-BB Filter

    Astrodon - 1.25" Mounted ExoPlanet-BB Filter

    Astrodon introduces the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.

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    Model#: XOPBB-27R
    $185.00

  10. Astrodon - MOAG M/F Adaptors

    Astrodon - MOAG M/F Adaptors

    A male/female adaptor ... Learn More
    Model#: MOAG-M_F
    $140.00

  11. Astronomik - LRGB Filter Set - 1.25" Round Mounted - Type 2c

    Astronomik - LRGB Filter Set - 1.25" Round Mounted - Type 2c

    These filters provide a natural color reproduction of planets, stars, emission- and reflection nebulas.

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    Model#: LRGB-1
    $269.95

  12. Astronomik - CLS Light Pollution Filter - Canon EOS Clip

    Astronomik - CLS Light Pollution Filter - Canon EOS Clip

    Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass.

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    Model#: CLS-EOS
    $129.95

  13. Astronomik - Planet IR Pro 742 Filter - 1.25" Round Mounted

    Astronomik - Planet IR Pro 742 Filter - 1.25" Round Mounted

    The Astronomik ProPlanet 742 cuts off the visible part of the spectrum and allows the light of wavelengths longer then 742nm to pass. Due to this, the.... ... Learn More
    Model#: P742-1
    $45.95

  14. Astronomik - CLS Light Pollution Filter - 2" Round Mounted

    Astronomik - CLS Light Pollution Filter - 2" Round Mounted

    The Astronomik CLS is an excellent filter for black & white and color imaging of nebulae, galaxies and star clusters with astronomical instruments of any size.

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    Model#: CLS-2
    $159.95

  15. Astronomik - CLS Light Pollution Filter - 1.25" Mounted

    Astronomik - CLS Light Pollution Filter - 1.25" Mounted

    The Astronomik CLS is an excellent filter for black & white and color imaging of nebulae, galaxies and star clusters with astronomical instruments of any size.

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    Model#: CLS-1
    $69.95

  16. Astronomik H-Alpha 12nm CCD Filter - Canon EOS Clip

    Astronomik - H-Alpha 12nm CCD Filter - Canon EOS Clip

    The Astronomik H-alpha filter is a narrow band filter for CCD photography.

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    Model#: HA12-EOS
    $189.95

  17. Astronomik - H-Alpha 12nm CCD Filter - 1.25" Round Mounted

    Astronomik - H-Alpha 12nm CCD Filter - 1.25" Round Mounted

    The Astronomik H-alpha filter is a narrow band filter for CCD photography. The filter lets the H-alpha light of emission nebulae pass and blocks nearly the whole remainder of the spectrum where the CCD is sensitive.

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    Model#: HA12-1
    $129.95

  18. Astronomik - H-Alpha 12nm CCD Filter - 2" Round Mounted

    Astronomik - H-Alpha 12nm CCD Filter - 2" Round Mounted

    The Astronomik H-alpha filter is a narrow band filter for CCD photography.

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    (48 States)
    Model#: HA12-2
    $289.95

  19. Astronomik - H-Alpha 6nm CCD Filter - 50mm Round Unmounted

    Astronomik - H-Alpha 6nm CCD Filter - 50mm Round Unmounted

    The Astronomik 6nm H-alpha filter is an extremely narrow emission-line filter for CCD photography.

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    (48 States)
    Model#: HA6-50R
    $449.95

  20. Astronomik H-Alpha 6nm CCD Filter - 1.25" Round Mounted

    Astronomik - H-Alpha 6nm CCD Filter - 1.25" Round Mounted

    The Astronomik 6nm H-alpha filter is an extremely narrow emission-line filter for CCD photography.

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    Model#: HA6-1
    $199.95

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