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  1. Astrodon - Narrowband - 50mm Unmounted SII 3 nm Filter

    Astrodon - Narrowband - 50mm Unmounted SII 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-50R

    Available - Ships in 2-4 Days

    $995.00

  2. Astrodon - Narrowband - 36mm Unmounted SII 3 nm Filter

    Astrodon - Narrowband - 36mm Unmounted SII 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-36R

    In Stock

    $650.00

  3. Astrodon - 50mm OIII 5nm Narrowband Filter - Unmounted

    Astrodon - 50mm OIII 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 5nm filter. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII5-50R

    Available - Ships in 2-4 Days

    $725.00

  4. Astrodon - 36mm H-Alpha 5nm Narrowband Filter - Unmounted

    Astrodon - 36mm H-Alpha 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon H-Alpha Narrowband 36mm Unmounted Filter. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA5-36R

    In Stock

    $435.00

  5. Astrodon - Narrowband - 1.25" Mounted H-Alpha 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted H-Alpha 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-27R

    Available - Ships in 2-4 Days

    $490.00

  6. Astrodon Narrowband 50mm Unmounted NII 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted NII 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: NII3-27R

    Available - Ships in 2-4 Days

    $490.00

  7. Astrodon - 1.25" OIII 3nm Narrowband Filter - Mounted

    Astrodon - 1.25" OIII 3nm Narrowband Filter - Mounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 3nm filter. 3nm filters will greatly increase contrast and are a great way to image in light polluted locations. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII3-27R

    Available - Ships in 2-4 Days

    $490.00

  8. Astrodon - 50mm OIII 5nm Narrowband Square Filter - Unmounted

    Astrodon - 50mm OIII 5nm Narrowband Square Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 5nm filter. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII5-50S

    Available - Ships in 2-4 Days

    $875.00

  9. Astrodon - Narrowband - 50mm Unmounted H-Alpha 3 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted H-Alpha 3 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-50S

    Available - Ships in 2-4 Days

    $1,250.00

  10. Astrodon - Narrowband - 50mm Unmounted SII 3 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted SII 3 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-50S

    Available - Ships in 2-4 Days

    $1,250.00

  11. Astrodon Narrowband 50mm Unmounted NII 3 nm Square Filter

    Astrodon - Narrowband - 50mm Unmounted NII 3 nm Square Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: NII3-50S

    Available - Ships in 2-4 Days

    $1,250.00

  12. Astrodon - 50mm OIII 3nm Narrowband Filter - Unmounted

    Astrodon - 50mm OIII 3nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 3nm filter. 3nm filters will greatly increase contrast and are a great way to image in light polluted locations. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII3-50R

    Available - Ships in 2-4 Days

    $995.00

  13. Astrodon - 50mm H-Alpha 5nm Narrowband Filter - Unmounted

    Astrodon - 50mm H-Alpha 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon H-Alpha Narrowband 50mm Unmounted Filter. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA5-50R

    Available - Ships in 2-4 Days

    $725.00

  14. Astrodon - Narrowband - 1.25" Mounted SII 3 nm Filter

    Astrodon - Narrowband - 1.25" Mounted SII 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: SII3-27R

    In Stock

    $490.00

  15. Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Astrodon - Narrowband - 36mm Unmounted H-Alpha 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-36R

    In Stock

    $650.00

  16. Astrodon - 36mm OIII 5nm Narrowband Filter - Unmounted

    Astrodon - 36mm OIII 5nm Narrowband Filter - Unmounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 31mm 5nm filter. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII5-36R

    In Stock

    $435.00

  17. Astrodon - 1.25" H-Alpha 5nm Narrowband Filter - Mounted

    Astrodon - 1.25" H-Alpha 5nm Narrowband Filter - Mounted

    Bring out the faint structures In nebulae with the Astrodon H-Alpha Narrowband 1.25" 5nm filter. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA5-27R

    In Stock

    $330.00

  18. Astrodon - Narrowband - 50mm Unmounted H-Alpha 3 nm Filter

    Astrodon - Narrowband - 50mm Unmounted H-Alpha 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: HA3-50R

    Available - Ships in 2-4 Days

    $995.00

  19. Astrodon Narrowband 50mm Unmounted NII 3 nm Filter

    Astrodon - Narrowband - 50mm Unmounted NII 3 nm Filter

    Narrowband (NB) filters  enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII),

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: NII3-50R

    Available - Ships in 2-4 Days

    $995.00

  20. Astrodon - 1.25" OIII 5nm Narrowband Filter - Mounted

    Astrodon - 1.25" OIII 5nm Narrowband Filter - Mounted

    Bring out the faint structures In nebulae with the Astrodon OIII Narrowband 1.25" 5nm filter. Setting a new bar of performance and durability for imaging and research. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII5-27R

    Available - Ships in 2-4 Days

    $330.00

Items 1 to 20 of 22 total

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