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OIII (Oxygen) Filters

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  1. Astronomik - OIII Filter - 1.25" Round Mounted

    Astronomik - OIII Filter - 1.25" Round Mounted

    From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

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    Model#: OIII-1
    $119.95

  2. Astronomik - OIII Filter - 2" Round Mounted

    Astronomik - OIII Filter - 2" Round Mounted

    From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

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    (48 States)
    Model#: OIII-2
    $239.95

  3. Astronomik - OIII Filter - SCT Rear Cell

    Astronomik - OIII Filter - SCT Rear Cell

    From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

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    FREE SHIPPING
    (48 States)
    Model#: OIII-SCT
    $239.95

  4. Astronomik - UHC Visual Filter - 1.25" Round Mounted

    Astronomik - UHC Visual Filter - 1.25" Round Mounted

    The Astronomik UHC filter is for visual deep-sky observation.

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    Model#: UHC-1
    $119.95

  5. 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#: 93623
    $69.50

  6. 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#: 93624
    $99.50

  7. 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: $168.00

    Special Price: $119.95

  8. 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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    FREE SHIPPING
    (48 States)
    Model#: LF3045
    $239.95

  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

    Regular Price: $60.00

    Special Price: $57.00

  10. 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

    Regular Price: $105.00

    Special Price: $99.75

  11. Orion - OIII Nebula Telescope Filter 1.25"

    Orion - OIII Nebula Telescope Filter 1.25"

    1.25in ... Learn More
    Model#: 05581
    $105.95

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

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

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    Model#: LP3-2
    $179.00

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