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  1. Opticstar 1.25" Light Pollution Filter

    Opticstar - 1.25" Light Pollution Filter

    This Opticstar Light Pollution Filter improve contrast for all types of telescopes; especially effective on the Moon and planets where they will show additional detail.

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    Model#: OSRLPF1
    $47.50

  2. IDAS Hutech 31mm Unmounted LPS Filter

    IDAS - Hutech - 31mm 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-P2-31
    $189.00

  3. 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
    $189.00

  4. IDAS - Hutech - 50mm Unmounted LPS Filter

    IDAS - Hutech - 50mm 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-P2-50
    $189.00

  5. IDAS - Hutech - SCT Filter Adapter  with 48mm LPS-D1 Filter

    IDAS - Hutech - SCT Filter Adapter with 48mm LPS-D1 Filter

    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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    FREE SHIPPING
    (48 States)
    Model#: LPS-D1-48SCT
    $265.00

  6. Vernonscope 1.25" Polarizer Filter 30%

    Vernonscope - 1.25" Polarizer Filter - 30%

    The Vernonscope 1.25" Mounted Glass Filter is composed of a 1" clear-aperture based optical glass with numbers engraved to match the Kodak Wratten series.

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    Model#: VRN114FILTPL
    $39.00

  7. Vernonscope Ten 1.25" Filter Set

    Vernonscope - Ten 1.25" Filter Set

    This Vernonscope eyepiece set includes ten 1.25" visual filters that are compatible with the Brandon Ocular and Dakin Barlow eyepieces and include numbers on the surface that match Kodak Wratten.

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    (48 States)
    Model#: 27200
    $369.00

  8. Vernonscope 1.25" Salmon Filter 63%

    Vernonscope - 1.25" Salmon Filter - 63%

    On the surface of the filter, there are numbers that correspond with Kodak Wratten filters and will fit Brandon Oculars and Dakin Barlows by Vernonscope.

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    Model#: VRN114FILT85
    $39.00

  9. Astro Optic 1.25" UHC Filter

    AstroOptic - 1.25" 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-UHC125-01

    Regular Price: $103.99

    Special Price: $79.99

  10. 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

    Regular Price: $116.99

    Special Price: $89.99

  11. Astro Optic 1.25" O-III Filter

    AstroOptic - 1.25" 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-OIII125-01

    Regular Price: $102.99

    Special Price: $79.99

  12. 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

    Regular Price: $115.99

    Special Price: $89.99

  13. DayStar Filters Quark Prominence Filter

    DayStar Filters - Quark Prominence Filter

    The DayStar Quark Prominence Filter works well on f/4-f/9 refractors by simply inserting the diagonal and eyepiece. Included is a custom Daystar 4.2X telecentric barlow designed for H-Alpha wavelengths and superior field flatness.

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    FREE SHIPPING
    (48 States)
    Model#: DSZ4P
    $995.00

  14. Orion 1.25" Orion Mars Observation Eyepiece Filter

    Orion - 1.25" Orion Mars Observation Eyepiece Filter

    The custom-designed Orion Mars Observation filter enhances contrast of virtually all surface features.

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    Model#: 05599
    $53.99

  15. IDAS Hutech Light Pollution Suppression Filter 72mm

    IDAS - Hutech - Light Pollution Suppression Filter - 72mm

    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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    FREE SHIPPING
    (48 States)
    Model#: LPS-D1-72
    $329.00

  16. IDAS Hutech Light Pollution Suppression Filter 52mm

    IDAS - Hutech - Light Pollution Suppression Filter - 52mm

    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-D1-52
    $189.00

  17. Lumicon - 1.25" Lunar & Planetary Filter Set (Dark)

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

    The Lumicon 1.25" Lunar & Planetary Filter Set (Light) contains the following filters: #12 Yellow, #25 Red, #47 Violet, #58 Green

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    Model#: LF5085
    $83.95

  18. Opticstar 2" Light Pollution Filter

    Opticstar - 2" Light Pollution Filter

    This Opticstar Light Pollution Filter improve contrast for all types of telescopes; especially effective on the Moon and planets where they will show additional detail.

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    Model#: OSRLPF2
    $76.00

  19. DGM Optics - 2" Narrow Pass Band (NPB) Nebula Filter

    DGM Optics - 2" Narrow Pass Band (NPB) Nebula Filter

    The NPB is the ONE filter to have if you have just one, and now regarded as the top narrowband  (UHC type) filter in the world. Judged by renown astro-equipment author Phil Harrington as the best of nine leading competitors in the Astronomy Magazine review "Secret Weapons" (August 2005).

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    Model#: NPB 2
    $150.00

  20. DGM Optics - 1.25" Narrow Pass Band (NPB) Nebula Filter

    DGM Optics - 1.25" Narrow Pass Band (NPB) Nebula Filter

    The NPB is the ONE filter to have if you have just one, and now regarded as the top narrowband  (UHC type) filter in the world. Judged by renown astro-equipment author Phil Harrington as the best of nine leading competitors in the Astronomy Magazine review "Secret Weapons" (August 2005).

    ...
    Learn More
    Model#: NPB 1.25
    $75.00

Items 1 to 20 of 124 total

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