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  1. DGM Optics - 2" VHT Filter

    DGM Optics - 2" VHT Filter

    The VHT is "mid-band" Nebula/LPR filter that is the perfect match for smaller scopes, or binoculars that can use filters. This filter provides a good balance between the NPB and GCE with regards to contrast vs. field background and star brightness.

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    Model#: VHT 2
    $140.00

  2. DGM Optics - 1.25" VHT Filter

    DGM Optics - 1.25" VHT Filter

    The VHT is "mid-band" Nebula/LPR filter that is the perfect match for smaller scopes, or binoculars that can use filters. This filter provides a good balance between the NPB and GCE with regards to contrast vs. field background and star brightness.

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    Model#: VHT 1.25
    $70.00

  3. DGM Optics - 2" CGE Filter

    DGM Optics - 2" CGE Filter

    The GCE takes a different approach to Wideband LPR filters by employing a "Notch" design which excludes all the bad stuff, from 540 - 590 nm, while allowing the rest of the visible spectrum to transmit over 90%.

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    Model#: CGE 2
    $160.00

  4. DGM Optics - 1.25" CGE Filter

    DGM Optics - 1.25" CGE Filter

    The GCE takes a different approach to Wideband LPR filters by employing a "Notch" design which excludes all the bad stuff, from 540 - 590 nm, while allowing the rest of the visible spectrum to transmit over 90%.

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    Model#: CGE 1.25
    $80.00

  5. DGM Optics - 2" HPOIII Filter

    DGM Optics - 2" HPOIII Filter

    The DGM Optics HPOIII is your perfect compliment to the NPB when you need a more aggressive Nebula filter that really shines with larger scopes. This filter has a bandwidth of approx.

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    Model#: HPOIII 2
    $170.00

  6. DGM Optics - 1.25" HPOIII Filter

    DGM Optics - 1.25" HPOIII Filter

    The DGM Optics HPOIII is your perfect compliment to the NPB when you need a more aggressive Nebula filter that really shines with larger scopes. This filter has a bandwidth of approx.

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    Model#: HPOIII 1.25
    $85.00

  7. iOptron - Green Moon Filter

    iOptron - Green Moon Filter

    A moon filter reduces irradiation, glare, and excess image brightness in lunar observing. It also improves the contrast between lunar albedo features.

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    Model#: TFE100
    $14.00

  8. Orion 2" moon filter

    Orion - 2" Moon Filter

    Orion 2" Moon Filter 05594 allows you to look at the moon and pick up the detail on the surface by cutting the brightness.

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    Model#: ORI-05594
    $30.99

  9. Astronomik - OIII Filter - SCT Rear Cell

    Astronomik - OIII Filter - SCT Rear Cell

    the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae. ... Learn More
    Model#: OIII-SCT
    $199.95

  10. Lumicon - 1.25" Lunar & Planetary Filter Set (Light)

    Lumicon - 1.25" Lunar & Planetary Filter Set (Light)

    The Lumicon 1.25" Lunar & Planetary Filter Set (Light) contains the following filters: #8 Light Yellow, #11 Yellow-Green #21 Orange, #82A Light Blue

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    Model#: LF5080
    $83.95

  11. 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
    $168.99

  12. Orion 2" Hydrogen-Beta Nebula Eyepiece Filter
  13. Optolong OIII CCD 12nm Filter - 1.25"

    Optolong - OIII CCD 12nm Filter - 1.25"

    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-125
    $115.00

  14. 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
    $179.00

  15. Optolong - OIII CCD 6.5nm Filter - 1.25" Mounted

    Optolong - OIII CCD 6.5nm Filter - 1.25" Mounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is focused at 500nm and radically decreases different transmissions, including wavelengths of light that are in charge of light contamination (both manufactured and normal).

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    Model#: OIIICCD65-125
    $159.00

  16. Optolong OIII CCD 6.5nm Filter - 2" Mounted

    Optolong - OIII CCD 6.5nm Filter - 2" Mounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is focused at 500nm and radically decreases other transmissions, including wavelengths of light that cause light pollution (both artificial and natural).

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    (48 States)
    Model#: OIIICCD65-200
    $255.00

  17. Optolong SII CCD 12nm Filter - 1.25" Mounted

    Optolong - SII CCD 12nm Filter - 1.25" Mounted

    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#: SIICCD12-125
    $129.00

  18. Optolong H-Beta 25nm Filter 1.25" Mounted

    Optolong - H-Beta 25nm Filter - 1.25" 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#: HBTA25-125
    $90.00

  19. 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
    $139.00

  20. Optolong H-Beta 12nm Filter - 1.25" Mounted

    Optolong - H-Beta 12nm Filter - 1.25" Mounted

    The Optolong H-Beta 12nm Filter permits you to visually see the ever-prevalent yet subtle Horsehead Nebula with vast opening telescopes under dim skies, and can likewise be utilized to picture the Horsehead and other nebulae radiate light at 486nm, such as but not limited to, the California and Cocoon nebulae.

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    Model#: HBTA12-125
    $119.00

Items 21 to 40 of 124 total

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