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  1. Astronomik - LRGB Filter Set - 31mm Round Unmounted

    Astronomik - LRGB Filter Set - 31mm Round Unmounted

    These filters provide a natural color reproduction of planets, stars, emission- and reflection nebulas.

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    (48 States)
    Model#: LRGB-31
    $289.95

  2. Astronomik - LRGB Filter Set - 36mm Round Unmounted - Type 2c

    Astronomik - LRGB Filter Set - 36mm Round Unmounted - Type 2c

    These filters provide a natural color reproduction of planets, stars, emission- and reflection nebulas.

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    (48 States)
    Model#: LRGB-36
    $349.95

  3. Astronomik - OIII 12nm CCD Filter - 31mm Round Unmounted

    Astronomik - OIII 12nm CCD Filter - 31mm Round Unmounted

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

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    Model#: OIIICCD-31
    $169.95

  4. 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
    $189.95

  5. 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
    $55.95

  6. Astronomik - Planet IR Pro 807 Filter - 31mm Round Unmounted

    Astronomik - Planet IR Pro 807 Filter - 31mm 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#: P807-31
    $55.95

  7. 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
    $55.95

  8. Farpoint Romor 48mm UV Filter

    Farpoint - Romor 48mm UV Filter

    Romor 48mm threaded UV filter. Threads fit 2" eyepiece end forming a dust cap.

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    Model#: FP502
    $9.00

  9. Baader Planetarium Set of 5 Photometric UBVRI Filters 1.25" (4mm Glass Thickness, Optically Polished)
  10. Baader Planetarium - f/2 Highspeed-Filter O-III 1.25" (with LPFC)

    Baader Planetarium - f/2 Highspeed-Filter O-III 1.25" (with LPFC)

    Baader’s new ‘High Speed’ Narrowband CCD Filters come in both 1.25” and 2” diameter mounted sizes, in H-alpha, O-III, and S-II, but with an extra twist when compared to their normal filters.

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    (48 States)
    Model#: FOIIIHS-1
    $213.00

  11. 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
    $109.00

  12. 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
    EXTENDED 1 MORE DAY! 10% OFF (will show in cart)
    $74.50

  13. 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
    $49.99

  14. Orion 1.25" Luminance/IR Cutoff Astrophotography Filter
  15. Orion 1.25" Sulfur-II Extra-Narrowband Filter

    Orion - 1.25" Sulfur-II Extra-Narrowband Filter

    Now you can capture dramatic Hubble-like CCD images of emission nebulas from the heart of the city or under a full Moon.

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    Model#: 05579
    $159.99

  16. 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#: 05582
    $159.99

  17. Orion 1.25" Hydrogen-Beta Eyepiece Filter

    Orion - 1.25" Hydrogen-Beta Eyepiece Filter

    A Hydrogen-Beta telescope filter may be the only way to see the faint and elusive Horsehead, California, and Cocoon Nebulas.

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    Model#: 05583
    $109.99

  18. Orion 2" Hydrogen-Beta Nebula Eyepiece Filter
  19. Orion 1.25" H-Alpha Extra-Narrowband Filter

    Orion - 1.25" H-Alpha Extra-Narrowband Filter

    Get Great Nebula Images Under City Lights or a Full Moon with the Orion Hydrogen-Alpha Extra Narrowband Astrophotography Filter!

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    Model#: 05587
    $179.99

  20. 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

    Regular Price: $116.99

    Special Price: $89.95

Items 81 to 100 of 355 total

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