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2" Filters

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  1. Astro Optic 2" UHC Filter

    AstroOptic - 2" UHC Filter

    The UHC, otherwise known as the Ultra High Contrast Filter is designed for viewing nebulae under a dark sky by filtering out certain wavelengths

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    Model#: Q1-UHC2-01

    In Stock

    Regular Price: $116.99

    Special Price: $89.99

  2. Astronomik 6 nm OIII MFR Narrowband Filter - 2" Mounted

    Astronomik - 6nm OIII MFR Narrowband Filter - 2" Mounted

    The OIII line (501 nm) is located in the blue-green portion of the spectrum, making them very suitable for observing most planetary nebulae and supernovae remnants and other objects with doubly ionized oxygen.

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    Model#: OIIICCD6-2

    Available - Ships in 2-4 Days

    $449.95

  3. Explore Scientific Nebula Filter 2" UHC Range from 458nm to 508nm with Peak at 488nm

    Explore Scientific - Nebula Filter 2" UHC Range from 458nm to 508nm with Peak at 488nm

    UHC - This is an ultra-high contrast narrow-band filter, designed for observing the broad range of nebulae with 2.0-inch standard eyepieces or filter wheels.

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    Model#: 310210

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    $89.00

  4. Explore Scientific Nebula Filter 2" O-III Range from 483nm to 511nm with Peak at 496nm

    Explore Scientific - Nebula Filter 2" O-III Range from 483nm to 511nm with Peak at 496nm

    Oxygen III - This is the highest contrast Nebula Filter in the series, a line filter for only the two emission lines of oxygen.

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    Model#: 310200

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    $99.99

  5. Explore Scientific Nebula Filter 2" CLS Range from 436nm to 536nm with Peak at 488nm

    Explore Scientific - Nebula Filter 2" CLS Range from 436nm to 536nm with Peak at 488nm

    A general-purpose light-pollution reduction filter designed for observing the broad range of deep sky objects including nebulae and galaxies.

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    Model#: 310220

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    $89.99

  6. Explore Scientific Neutral Density Filter 2" ND 0.9

    Explore Scientific - Neutral Density Filter 2" ND 0.9

    The Explore Scientific neutral density filter transmits light uniformly across the entire visual spectrum.

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    Model#: 310240

    Available - Ships in 2-4 Days

    $34.99

  7. Explore Scientific Nebula Filter 2" H-Beta Range from 478nm to 496nm with Peak at 489nm

    Explore Scientific - Nebula Filter 2" H-Beta Range from 478nm to 496nm with Peak at 489nm

    The Explore Scientific H-beta filter uses a characteristic property of the so called emission nebulae. Those objects glow in special colors, the so called emission lines.

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    Model#: 310230

    Available - Ships in 2-4 Days

    $129.99

  8. Optolong UHC Filter - 2" Mounted

    Optolong - UHC Filter - 2" Mounted

    This UHC, or Ultra High Contrast, filter from Optolong gives more contrast than the CLS filter, but works similarly. By decreasing the contrast-killing effects of light pollution brought on by both artificial and natural sources, the background sky becomes darker, increasing the visibility of your favorite deep-sky objects.

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    Model#: UHC-200

    Available - Ships in 2-4 Days

    $85.00

  9. Optolong - CLS Filter - 2" Mounted

    Optolong - CLS Filter - 2" Mounted

    The Optolong CLS channel is ideal for both visual and photographic applications in light polluted locations. The City Light Suppression Filter's pass-band is more extensive than the famous UHC, or Ultra High Contrast channel, numerous astronomer experts favor its utilization when observing in mild to moderate light pollution.

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    Model#: CLS-200

    Available - Ships in 2-4 Days

    $85.00

  10. Optolong L-Pro Filter - 2" Mounted

    Optolong - L-Pro Filter - 2" Mounted

    The L-Pro filter from Optolong is a multi-bandpass filter that functions remarkably for visual use and in addition photographic use with CCD and DSLR sensors.

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    Model#: LPRO-200

    Available - Ships in 2-4 Days

    $199.00

  11. Baader Planetarium 2" Polarization Filter - Double

    Baader Planetarium - 2" Polarization Filter - Double

    The Baader 2" Polarizer can attacha a T2-15 adapter, enabling the use of 1.25" eyepiece without removing the filter while keeping the eyepiece and filter position close.

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    Model#: FPOL-2D

    Available - Ships in 2-4 Days

    $137.00

  12. Baader Planetarium 2" Multicoated Neutral Density Filter - ND 0.9

    Baader Planetarium - 2" Multicoated Neutral Density Filter - ND 3.0

    The Baader Planetarium Neutral Density Filter 3.0 helps reduce light from bright objects. It is mounted in a 2" filter cell (also available as a 1.25" version SOLD SEPARATELY)

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    Model#: FND3-2

    Available - Ships in 2-4 Days

    $68.00

  13. Baader Planetarium 2" Multicoated Neutral Density Filter - ND 1.8

    Baader Planetarium - 2" Multicoated Neutral Density Filter - ND 1.8

    The Baader Planetarium Neutral Density Filter 1.8 helps reduce light from bright objects. It is mounted in a 2" filter cell (also available as a 1.25" version SOLD SEPARATELY)

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    Model#: FND2-2

    Available - Ships in 2-4 Days

    $68.00

  14. Astro Optic 2" O-III Filter

    AstroOptic - 2" O-III Filter

    Oxygen III or OIII filters are mainly designed for viewing planetary nebulae that normally have extremely narrow pass bands in the oxygen spectral lines

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    Model#: Q1-OIII2-01

    In Stock

    Regular Price: $115.99

    Special Price: $89.99

  15. 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

    In Stock

    Regular Price: $116.99

    Special Price: $89.95

  16. DayStar Filters 2" UV/IR Filter

    DayStar Filters - 2" UV/IR Filter

    The DayStar 2" UV/IR Filter blocks the heat from reaching your filter and diagonal by blocking all other parts of the spectrum in the UV and IR. The filter is best for focal ratios between f/0.5 and f/50.

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    Model#: DSIUV2

    Available - Ships in 2-4 Days

    $109.00

  17. Lunt Solar Systems 2" Polarizing Filter for White Light Solar Wedge

    Lunt - 2" Polarizing Filter for White Light Solar Wedge

    2" Polarizing Filter (1 unit), to be used with the LUNT 2" White Light Solar-Wedge / Herschel-Wedge.

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    Model#: PF-1

    Available - Ships in 2-4 Days

    $74.50

  18. Orion OIII Nebula Telescope Filter 2"

    Orion - OIII Nebula Telescope Filter 2"

    You can't turn up the luminosity on nebulas, but you can crank up the contrast between them and the sky to reveal more of their wondrous detail.

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    Model#: ORI-05582

    Available - Ships in 2-4 Days

    $139.99

  19. Orion 2" Hydrogen-Beta Nebula Eyepiece Filter

    Orion - 2" Hydrogen-Beta Nebula Eyepiece Filter

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    Model#: ORI-05584

    In Stock

    $139.99

  20. Astronomik - ProPlanet 642 BP IR-Pass Filter - 2"

    Astronomik - ProPlanet 642 BP IR-Pass Filter - 2"

    your camera, the Astronomik ProPlanet 642 BP is a great tool either for daylight IR-imaging with your digital camera, or it will reduce seeing effects and enhance contrast when used for .... ... Learn More
    Model#: P642-2

    Available - Ships in 2-4 Days

    $139.95

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