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  1. Optolong - UV-IR Cut Filter - 36mm Unmounted

    Optolong - UV-IR Cut Filter - 36mm Unmounted

    Improve image sharpness with the addition of an Optolong UV-IR Cut Filter, which blocks Ultraviolet and Infrared transmissions yet lets the visible spectral lines shine through. The IR (700nm to 1100nm) and UV (300nm - 400nm) part of the spectrum are not detectable to human eyes, however not to most CCD and other computerized cameras, which are sensitive to 300nm to 1100nm.

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    Model#: UVIR-36U

    Available - Ships in 2-4 Days

    $56.00

  2. Optolong SII CCD 12nm Filter - 36mm Unmounted

    Optolong - SII CCD 12nm Filter - 36mm Unmounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    Model#: SIICCD12-36U

    Available - Ships in 2-4 Days

    $159.00

  3. Optolong OIII CCD 12nm Filter - 36mm Unmounted

    Optolong - OIII CCD 12nm Filter - 36mm Unmounted

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    Model#: OIIICCD12NM-36U

    Available - Ships in 2-4 Days

    $139.00

  4. Optolong LRGB CCD Filter Set - 36mm Unmounted

    Optolong - LRGB CCD Filter Set - 36mm Unmounted

    The Optolong LRGB Filter Set includes four 36mm unmounted filters, including Red, Green, Blue, and Luminance. They're suitable for de-bayered monochrome CCD and CMOS cameras, and function remarkably for both planetary and deep sky imaging.

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    Model#: LRGB-36U

    Available - Ships in 2-4 Days

    $299.00

  5. 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

    Available - Ships in 2-4 Days

    $168.00

  6. Optolong H-Alpha 7nm CCD Filter - 36mm Unmounted

    Optolong - H-Alpha 7nm CCD Filter - 36mm Unmounted

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that functions by permitting a 7nm light bandwidth, focused on the 656nm wavelength through, and obstructing the transmission of contrast-killing light-pollution wavelengths.

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    Model#: HAL7-36U

    Available - Ships in 2-4 Days

    $193.00

  7. Optolong - H-Alpha 12nm CCD Filter - 36mm Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 36mm Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    Model#: HAL12-36U

    Available - Ships in 2-4 Days

    $169.00

  8. IDAS - Hutech - 36mm Unmounted LPS Filter

    IDAS - Hutech - 36mm Unmounted 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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    Model#: LPS-P2-36

    Available - Ships in 2-4 Days

    $189.00

  9. Chroma filters

    Chroma Technology - Red 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Red-36

    Available - Ships in 2-4 Days

    $155.00

  10. Chroma Technology - Luminance 36mm Diameter Filter - Unmounted

    Chroma Technology - Luminance 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Lum-36

    Available - Ships in 2-4 Days

    $155.00

  11. Chroma filters

    Chroma Technology - Green 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Green-36

    Available - Ships in 2-4 Days

    $155.00

  12. Chroma filters

    Chroma Technology - Blue 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Blue-36

    Available - Ships in 2-4 Days

    $155.00

  13. Chroma filters

    Chroma Technology - 36mm LRGB Set - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: CT-LRGB-36

    Available - Ships in 2-4 Days

    $595.00

  14. Chroma filters

    Chroma Technology - 36mm LRGB and Ha/8-36 Set - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: HaLRGB-36

    Available - Ships in 2-4 Days

    $925.00

  15. Astronomik - SII 12nm CCD Filter - 36mm Round Unmounted

    Astronomik - SII 12nm CCD Filter - 36mm Round Unmounted

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

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    Model#: SII-36

    Available - Ships in 2-4 Days

    $189.95

  16. Astronomik - ProPlanet 642 BP IR-Pass Filter - 36mm

    Astronomik - ProPlanet 642 BP IR-Pass Filter - 36mm

    ProPlanet 642 BP will give you three filters in one single product. Depending on your camera, the Astronomik ProPlanet 642 BP is a great ... Learn More
    Model#: P642-36

    Available - Ships in 2-4 Days

    $89.95

  17. Astronomik - Planet IR Pro 807 Filter - 36mm Round Unmounted

    Astronomik - Planet IR Pro 807 Filter - 36mm Round Unmounted

    The Astronomik ProPlanet 807 filter is a deal addition to the Astronomik ProPlanet 742 for imaging the moon and planets, with telescopes larger then 10" (250mm) when the seeing is poor.

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    Model#: P807-36

    Available - Ships in 2-4 Days

    $55.95

  18. Astronomik - Planet IR Pro 742 Filter - 36mm Round Unmounted

    Astronomik - Planet IR Pro 742 Filter - 36mm Round Unmounted

    The Astronomik ProPlanet 742 is the ideal filter for imaging the moon and planets with telescopes 6" (150mm) aperture and greater....

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    Model#: P742-36

    Available - Ships in 2-4 Days

    $55.95

  19. Astronomik - OIII 12nm CCD Filter - 36mm Round Unmounted

    Astronomik - OIII 12nm CCD Filter - 36mm Round Unmounted

    The Astronomik OIII CCD filter is a narrow band emission-line-filter for CCD photography.

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    Model#: OIIICCD-36R

    Available - Ships in 2-4 Days

    $189.95

  20. Astronomik - Luminance Filter - 36mm Round Unmounted

    Astronomik - Luminance Filter - 36mm Round Unmounted

    The Astronomik UV and IR cut Filter is great for for digital photography!

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    Model#: L-36

    Available - Ships in 2-4 Days

    $59.95

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