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2" Filters

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  1. 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

    Available

    $255.00

  2. Optolong - H-Alpha 12nm CCD Filter - 50mm Square Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 50mm Square Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: HAL12-50SQ

    Available

    $259.00

  3. Baader Planetarium Color Filters - 1.25"

    Baader Planetarium - Color Filters - 2"

    These color filters provide the highest levels of image brightness and freedom from scattered light, combined with uncompromising image sharpness at the high magnifications required to observe delicate planetary details.

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    (48 States)
    Model#: BPCF2

    Available

    $284.00

  4. Optolong Venus U Filter - 2" Mounted

    Optolong - Venus U Filter - 2" Mounted

    Picture the sulphuric acid clouds of Venus or do UV landscape photography with the Optolong 2" Venus U Filter. This special filter must be utilized for imaging through CCD/CMOS or DSLR cameras* only since our eyes are not sensitive to UV wavelengths.

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    (48 States)
    Model#: VEU-200

    Available

    $253.30

  5. Optolong H-Alpha 7nm CCD Filter - 2" Mounted

    Optolong - H-Alpha 7nm CCD Filter - 2" Mounted

    The Optolong H-Alpha 7nm is an very narrow emission-line filter that works by permitting a 7nm bandwidth of light, fixated on the 656nm wavelength through, and blocking the transmission of contrast killing wavelengths of light pollution.

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    (48 States)
    Model#: HAL7-200

    Available

    $259.00

  6. Optolong SII CCD 12nm Filter - 2" Mounted

    Optolong - SII CCD 12nm Filter - 2" 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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    (48 States)
    Model#: SIICCD12-200

    Available

    $209.00

  7. Optolong SII CCD 6.5nm Filter - 2" Mounted

    Optolong - SII CCD 6.5nm Filter - 2" Mounted

    The Optolong Sulfur II 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 672nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    (48 States)
    Model#: SIICCD65-200

    Available

    $250.00

  8. Lumicon - 2" Comet Filter

    Lumicon - 2" Comet Filter

    The Lumicon 2" Comet Filter, a narrow band-pass filter (25nm), isolates the 501nm OIII line and both C2 lines at 511nm and 514nm.

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    (48 States)
    Model#: LF3075

    Available

    $299.95

  9. Lumicon - 2"  H-Beta Filter

    Lumicon - 2" H-Beta Filter

    Also known as the Horsehead Nebula filter, the Lumicon 2" Hydrogen-Beta Filter isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm wide, providing maximum contrast.

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    (48 States)
    Model#: LF3060

    Available

    $299.95

  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

    Available

    $299.95

  11. TeleVue - OIII Bandmate Filter 2"*

    TeleVue - OIII Bandmate Filter 2"*

    This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
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    (48 States)
    Model#: BFO-0200

    Available

    5% off

    Regular Price: $315.00

    Special Price: $299.25

  12. Lumicon - 2" Deep Sky Filter

    Lumicon - 2" Deep Sky Filter

    The best all-purpose nebula filter on the market today.

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    (48 States)
    Model#: LF3015

    In Stock

    $299.95

  13. Lumicon - 2"  Ultra High Contrast Filter

    Lumicon - 2" Ultra High Contrast Filter

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    (48 States)
    Model#: LF3030

    Available

    $299.95

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