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  1. Astronomik - CLS Visual Light Pollution Filter - 50mm Round Unmounted

    Astronomik - CLS Visual Light Pollution Filter - 50mm Round Unmounted

    The Astronomik Visual CLS is a light pollution filter for black & white and color imaging of nebulae, galaxies and star clusters.

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    Model#: CLS-50R
    $159.95

  2. IDAS Hutech Light Pollution Suppression Filter - 82mm

    IDAS - Hutech - Light Pollution Suppression Filter - 82mm

    This light pollution filter suppresses artificial light emission lines while preserving the emission lines from nebulae, therefore enhancing the view and image. Using Multi-Bandpass technology, color balance is preserved when taking images.

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    FREE SHIPPING
    (48 States)
    Model#: LPS-D1-82
    $369.00

  3. Astro Optic 1.25" CLS Filter

    AstroOptic - 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

  4. AstroOptic - 2" CLS Filter

    AstroOptic - 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

  5. Astronomik CLS Light Pollution Filter Canon EOS Full Frame Clip

    Astronomik - CLS Light Pollution Filter - Canon EOS Full Frame Clip

    The Astronomik CLS filter is excellent for both visual and black and white (monochrome) CCD imaging of nebulae, galaxies and star clusters with a wide variety of astronomical instruments with different sizes.

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    Model#: cls-eosxl
    $159.95

  6. Celestron Light Pollution Imaging Filter for Rowe-Ackerman Schmidt Astrograph

    Celestron - Light Pollution Imaging Filter for Rowe-Ackerman Schmidt Astrograph

    Get the most out of your Celestron Rowe-Ackermann Schmidt Astrograph, even under light-polluted skies, with this Light Pollution Imaging Filter, custom-designed for RASA by Celestron and Astrodon.

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    FREE SHIPPING
    (48 States)
    Model#: 93617
    $499.95

  7. Optolong CLS-CCD Filter -1.25" Mounted

    Optolong - CLS-CCD Filter -1.25" Mounted

    The Optolong CLS-CCD filter will boost contrast and increase visibility of faint outer regions on most emission nebulae, planetary nebulae, and supernova remnants from light polluted areas when photographed with a color imaging camera.

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    Model#: CLSCCD-125
    $96.00

  8. Optolong Moon SkyGlow Filter - 2" Mounted

    Optolong - Moon SkyGlow Filter - 2" Mounted

    The Optolong Moon and Skyglow Filter is ideal for both visual and photographic usage. You'll see a darker background sky because of the obstruction of natural skyglow at 589nm wavelength and in emission from lights that cause artificial light pollution.

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    Model#: MSG-200
    $70.00

  9. Optolong CLS-CCD Filter - EOS Full Frame Clip

    Optolong - CLS-CCD Filter - EOS Full Frame Clip

    The Optolong CLS-CCD filter will enhance contrast and increase visibility of faint outer regions on most emission, planetary, and supernovae remnant nebulae from light polluted locations when photographed with a color imaging camera.

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    Model#: EOSFF-CLSCCD
    $135.00

  10. Optolong - L-Pro Filter - 36mm Unmounted

    Optolong - L-Pro Filter - 36mm Unmounted

    The Optolong L-Pro filter delivers better color balance by maximizing transmission band, permitting you to create pictures of broadband objects with emission spectral lines.

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    Model#: LPRO-36U
    $168.00

  11. Optolong CLS Filter Nikon D5000/D5100 Clip

    Optolong - CLS Filter - Nikon D5000/D5100 Clip

    The Optolong CLS filter is ideal for both visual and photographic applications in locations that experience the effects of artificial light pollution. Since the City Light Suppression Filter has a wider pass-band than the popular UHC, or Ultra High Contrast filter, many amateur astronomers favor its use when observing in mild to moderate light pollution.

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    Model#: NIKD5-CLS
    $109.00

  12. Optolong CLS Filter - Nikon D7000/D7100 Clip
  13. Optolong UHC Filter - EOS Full Frame Clip

    Optolong - UHC Filter - EOS Full Frame Clip

    This UHC, or Ultra High Contrast, filter from Optolong provides a bit more contrast than the CLS filter, but works in much the same way.

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    Model#: EOSFF-UHC
    $115.00

  14. Optolong CLS-CCD Filter - EOS APS C Clip

    Optolong - CLS-CCD Filter - EOS APS C Clip

    The Optolong CLS-CCD filter will enhance contrast and increase visibility of faint outer regions on most emission, planetary, and supernovae remnant nebulae from light polluted locations when photographed with a color imaging camera.

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    Model#: EOSAPS-CLSCCD
    $155.00

  15. IDAS Hutech Light Pollution Suppression Filter 1.25"

    IDAS - Hutech - Light Pollution Suppression Filter - 1.25"

    This light pollution filter suppresses artificial light emission lines while preserving the emission lines from nebulae, therefore enhancing the view and image.

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    Model#: LPS-D1-28.6
    $179.00

  16. IDAS - Hutech - Light Pollution Suppression Filter (to be used with MFA)
  17. Astronomik - CLS CCD Light Pollution Filter - 36mm Round Unmounted

    Astronomik - CLS CCD Light Pollution Filter - 36mm Round Unmounted

    The Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use.

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    Model#: CLSCCD-36
    $129.95

  18. 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

  19. 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

  20. 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

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