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OIII (Oxygen) Filters

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  1. TO - LP-3  OIII (Green Cell)  2"

    TO - LP-3 OIII (Green Cell) 2"

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    Model#: LP3-2
    $179.00

  2. 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

  3. Orion OIII Nebula Telescope Filter 1.25"

    Orion - OIII Nebula Telescope Filter 1.25"

    1.25in ... Learn More
    Model#: ORI-05581
    $116.99

  4. 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

  5. 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

  6. 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

  7. 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

  8. Opticstar - 2" Nebula Deep Sky Filter

    Opticstar - 2" Nebula Deep Sky Filter

    This Opticstar 2" eyepiece is suitable for both visual observation and imaging these are all-in-one high-transmission deep sky filters.

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    Model#: OSRIFNEB2
    $99.75

  9. FP473

    Opticstar - 1.25 " Nebula Deep Sky Filter

    This Opticstar 1.25" eyepiece is suitable for both visual observation and imaging these are all-in-one high-transmission deep sky filters.

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    Model#: OSRIFNEB1
    $57.00

  10. Lumicon 2" Oxygen III Filter

    Lumicon - 2" Oxygen III Filter

    The legendary Lumicon 2" OIII narrow band-pass filter isolates just the two doubly ionized oxygen lines

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    (48 States)
    Model#: LF3045
    $299.95

  11. Lumicon - 1.25" Oxygen III Filter

    Lumicon - 1.25" Oxygen III Filter

    The legendary Lumicon 1.25in OIII narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm lines) emitted by diffuse, planetary and extremely faint nebulae.

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    Model#: LF3040

    Regular Price: $149.95

    Special Price: $119.95

  12. Explore Scientific - Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm

    Explore Scientific - Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm

    Intended for nighttime observation of emission and planetary nebulae, especially the Veil Nebula NGC 6992, the O-III Filter from Explore Scientific is compatible with telescopes featuring a 1.25"-diameter eyepiece.

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    Model#: 310205
    $79.99

  13. 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
    $109.95

  14. Celestron Oxygen III (OIII) Narrowband Filter - 1.25"

    Celestron - Oxygen III (OIII) Narrowband Filter - 1.25"

    The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light.

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    Model#: CEL-93623
    $79.95

  15. 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
    $118.00

    Out of stock

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

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

    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#: BPO3125
    $90.00

  17. 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

  18. 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

  19. 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

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