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  1. Astrodon - LRGB Astrodon Tru-Balance E-Series Filters 36 mm dia.for SBIG ST-8300

    Astrodon - LRGB Astrodon Tru-Balance E-Series Filters 36 mm dia.for SBIG ST-8300

    Astrodon Tru-Balance filters simply stack and merge the color images through the filters on top of the brightness of a monochrome image from the sensor. This is a primary reason why monochrome sensors are so beneficial.

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    (48 States)
    Model#: LRGB2-E36R
    $595.00

  2. Astrodon - Narrowband - 36mm Unmounted H-a 3 nm Filter

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

    Narrowband Filters      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,

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    FREE SHIPPING
    (48 States)
    Model#: HA3-36R
    $565.00

  3. Astrodon - Narrowband - 36mm Unmounted OIII 3 nm Filter

    Astrodon - Narrowband - 36mm Unmounted OIII 3 nm Filter

    Narrowband Filters      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,

    ...
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    FREE SHIPPING
    (48 States)
    Model#: OIII3-36R
    $565.00

  4. Astrodon - Narrowband - 50mm dia. H-a 3 nm Filter

    Astrodon - Narrowband - 50mm dia. H-a 3 nm Filter

    Narrowband Filters      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
    $925.00

  5. Astrodon - Narrowband - 50mm dia. H-a 5 nm Filter

    Astrodon - Narrowband - 50mm dia. H-a 5 nm Filter

    Narrowband Filters      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#: HA5-50R
    $625.00

  6. Astrodon - Narrowband - 50mm dia. OIII 3 nm Filter

    Astrodon - Narrowband - 50mm dia. OIII 3 nm Filter

    Narrowband Filters      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#: OIII3-50R
    $925.00

  7. Astrodon - Narrowband - 50mm dia. OIII 5 nm Filter

    Astrodon - Narrowband - 50mm dia. OIII 5 nm Filter

    Narrowband Filters      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#: OIII5-50R
    $625.00

  8. Astrodon - Narrowband - 50mm dia. RED 5 nm Filter

    Astrodon - Narrowband - 50mm dia. RED 5 nm Filter

    Narrowband Filters      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#: REDCON5-50R
    $675.00

  9. Astrodon - Narrowband - 50mm dia. SII 3 nm Filter

    Astrodon - Narrowband - 50mm dia. SII 3 nm Filter

    Narrowband Filters      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
    $925.00

  10. Astrodon - Narrowband - 50mm dia. SII 5 nm Filter

    Astrodon - Narrowband - 50mm dia. SII 5 nm Filter

    Narrowband Filters      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#: SII5-50R
    $625.00

  11. Astrodon - Narrowband - 50mm dia. Unmounted NII 3 nm Filter

    Astrodon - Narrowband - 50mm dia. Unmounted NII 3 nm Filter

    Narrowband Filters      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
    $925.00

  12. Astrodon - Narrowband - 50mm Square H-a 5 nm Filter

    Astrodon - Narrowband - 50mm Square H-a 5 nm Filter

    Narrowband Filters      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#: HA5-50S
    $745.00

  13. Astrodon - Narrowband - 50mm Square OIII 5 nm Filter

    Astrodon - Narrowband - 50mm Square OIII 5 nm Filter

    Narrowband Filters      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,

    ...
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    FREE SHIPPING
    (48 States)
    Model#: OIII5-50S
    $745.00

  14. Astrodon - Narrowband - 50mm Square RED Continuum 5 nm Filter

    Astrodon - Narrowband - 50mm Square RED Continuum 5 nm Filter

    Narrowband Filters      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#: REDCON5-50S
    $750.00

  15. Astrodon - Narrowband - 50mm Square SII 5 nm Filter

    Astrodon - Narrowband - 50mm Square SII 5 nm Filter

    Narrowband Filters      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#: SII5-50S
    $745.00

  16. Astrodon - Narrowband 5 nm H-a > 90%T 65mm Square Filter for SBIG STX

    Astrodon - Narrowband 5 nm H-a > 90%T 65mm Square Filter for SBIG STX

    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),

    ...
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    FREE SHIPPING
    (48 States)
    Model#: HA5-65S
    $945.00

  17. Astrodon - NIR Tricolor - 1.25" Mounted NIRL123 Tri-color Imaging (Set of 4)

    Astrodon - NIR Tricolor - 1.25" Mounted NIRL123 Tri-color Imaging (Set of 4)

    NIR Tricolor Filters        The NIR region remains largely unexplored by amateur imagers. Perhaps this is due to the impression that the Si CCD camera is not sufficiently sensitive in the NIR ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: NIRL123-27R
    $500.00

  18. Astrodon - Tru-Balance E-Series - 50mm dia. CRGB Filter

    Astrodon - Tru-Balance E-Series - 50mm dia. CRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CRGB2-E50R
    $875.00

  19. Astrodon - Tru-Balance E-Series - 50mm dia. LRGB Filter

    Astrodon - Tru-Balance E-Series - 50mm dia. LRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!        Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E50R
    $875.00

  20. Astrodon - Tru-Balance I-Series - 50mm dia. CRGB Filter

    Astrodon - Tru-Balance I-Series - 50mm dia. CRGB Filter

    TRU-BALANCE FILTERSSIMPLIFY YOUR IMAGINGGreat Filters Just Got Better - Generation 2 Now Shipping!  Astrodon Tru-Balance RGB filters have revolutionized CCD imaging ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: CRGB2-I50R
    $875.00

Items 1 to 20 of 21 total

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