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2" Filters

Items 1 to 20 of 29 total

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  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. Optolong CLS-CCD Filter - 2" Mounted

    Optolong - CLS-CCD Filter - 2" 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-200

    Available - Ships in 2-4 Days

    $159.00

  9. Optolong OIII CCD 12nm Filter - 2" Mounted

    Optolong - OIII CCD 12nm Filter - 2" Mounted

    The Optolong Oxygen III 12nm Narrowband Filter transmits a bandwidth of 12nm of light that is focused at 500nm and definitely decreases different transmissions, including wavelengths of light that cause light pollution (both artificial and natural).

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    Model#: OIIICCD12NM-200

    Available - Ships in 2-4 Days

    $179.00

  10. Baader Planetarium Visual Narrowband O-III Filter - 1.25"

    Baader Planetarium - Visual Narrowband O-III Filter - 2"

    For enthusiastic deep sky observers who live in light-polluted areas, planetary nebulae and supernovae remnants will shine with the enhance contrast from the Baader Planetarium O-III Filter!

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    Model#: BPO32

    Available - Ships in 2-4 Days

    $118.00

  11. Baader Planetarium - Contrast-Booster Filter - 2"

    Baader Planetarium - Contrast-Booster Filter - 2"

    The Baader Planetarium 2" Contrast Booster Filter is a remarkable accessory for all refractive optical systems!

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    Model#: BPCB2

    Available - Ships in 2-4 Days

    $115.00

  12. Baader Planetarium - Neodymium (Moonglow and Skyglow) Filter - 2"

    Baader Planetarium - Neodymium (Moonglow and Skyglow) Filter - 2"

    The Baader Planetarium Neodymium Filter was intended to transmit the most amount of incoming light possible while suppressing skyglow caused by artificial lighting and background glow when Moon is above horizon.

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    Model#: BPMS2

    Available - Ships in 2-4 Days

    $119.00

  13. Baader Planetarium - Solar Continuum Filter - 2"

    Baader Planetarium - Solar Continuum Filter - 2"

    Baader solar continuum filters offer unsurpassed contrast of photospheric details which is achieved by an extremely narrow half bandwidth of only 8nm. Functions like a monochrometer, suppressing the effects of solar atmospheric turbulence to provide images that appear markedly more stable. IMPORTANT: MUST be used with a visual density white-light solar filter in front of lens otherwise damage to eyes can result.

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    Model#: BPSC2

    Available - Ships in 2-4 Days

    $136.00

  14. Optolong H-Alpha 12nm CCD Filter - 2" Mounted

    Optolong - H-Alpha 12nm CCD Filter - 2" Mounted

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

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    Model#: HAL12-200

    Available - Ships in 2-4 Days

    $199.00

  15. Optolong H-Beta 25nm Filter - 2" Mounted

    Optolong - H-Beta 25nm Filter - 2" Mounted

    This Optolong H-Beta filter has a FWHM of 25nm, making it more suitable for visual observations of the Horsehead, California, and Cocoon nebulae. The filters transmits a 25nm transfer speed of light that is focused at 486nm and accuracy blocks outside wavelengths of light that cause light pollution (both artificial and natural).

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    Model#: HBTA25-200

    Available - Ships in 2-4 Days

    $139.00

  16. Optolong Night Sky H-Alpha Filter - 2" Mounted

    Optolong - Night Sky H-Alpha Filter - 2" Mounted

    The Optolong Night Sky H-Alpha filter, or IR-Pass 650nm channel, can be utilized for imaging of the Moon, planets and deep sky objects that emit H-alpha wavelengths.

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    Model#: NSHA-200

    Available - Ships in 2-4 Days

    $119.00

  17. Baader Planetarium - UV-IR Rejection Filter - 2"

    Baader Planetarium - UV-IR Rejection Filter - 2"

    Astrophotography with CCD cameras, digital cameras and webcams will only get better with the addition of the Baader UV-IR Rejection Filter!

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    Model#: BPUVIR2

    Available - Ships in 2-4 Days

    $114.00

  18. Baader Planetarium - UHC-S / L-Booster-Filter 2"

    Baader Planetarium - UHC-S / L-Booster-Filter 2"

    The Baader Planetarium UHC-S Nebula filter excels at delivering a high-contrast and natural view of emission nebula - without excessive dimming and loss of background star fields.

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    Model#: FUHC-2

    In Stock

    $147.00

  19. FCB-2

    Baader Planetarium - Contrast Booster 2" Filter

    Much more than a simple minus-violet filter. Based on the popular Baader Moon&Skyglow filter, the Baader Contrast-Booster takes contrast enhancement and skyglow reduction to the maximum level possible from a filter

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    Model#: FCB-2

    In Stock

    $123.00

  20. Celestron Oxygen III (OIII) Narrowband Filter 2"

    Celestron - Oxygen III (OIII) Narrowband Filter - 2"

    Each filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.

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    Model#: CEL-93624

    In Stock

    $109.95

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