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Astrodon

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  1. Astrodon - Camera-side 2.156" Male Adapter for SBIG STL Cameras - 0.1" Long
  2. Astrodon - Photometric Sloan - 50mm Gen 2 Unmounted Y Filter

    Astrodon - Photometric Sloan - 50mm Gen 2 Unmounted Y Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    (48 States)
    Model#: Y2-50R

    In Stock

    $400.00

  3. Astrodon Narrowband 50mm Unmounted SII 5 nm Square Filter

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

    When it comes to Narrowband filters, no one knows more or does it better than Don Goldman of Astrodon 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, 501 nm), sulfur (SII, 672nm) and others.

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    Model#: SII5-50S

    In Stock

    $875.00

  4. Astrodon 1.25" Mounted Exo-Planet (Clear with Blue-Blocking)

    Astrodon - 1.25" Mounted Exo-Planet (Clear with Blue-Blocking) Filter

    Astrodon introduces the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.

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    Model#: XOPBB-27R

    In Stock

    $185.00

  5. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 g' Edge Blackened Square Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    (48 States)
    Model#: g'2-50S

    Available

    $440.00

  6. 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
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    Model#: OIII3-50R

    Available

    $995.00

  7. Astrodon - Photometric UBVRIc - 50mm Unmounted Johnson/Cousins B Edge Blackened Filter

    Astrodon - Photometric UBVRIc - 50mm Unmounted Johnson/Cousins B Edge Blackened Filter

    UVBRI filters have been the standard for photometric measurements for decades.  They have evolved over time as technology changed.

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    (48 States)
    Model#: B-50R

    In Stock

    $400.00

  8. Astrodon - NIR Tricolor - 50mm NIRL Luminance Square Filter

    Astrodon - NIR Tricolor - 50mm NIRL Luminance Square Filter

    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.

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    Model#: NIRL-50S

    Available

    $525.00

  9. 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
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    (48 States)
    Model#: HA5-50R

    Available

    $725.00

  10. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - 1.25" Mounted Johnson-Cousins Ic Edge Blackened Filter

    UVBRI filters have been the standard for photometric measurements for decades.  They have evolved over time as technology changed.  H. Johnson in the 1950s and A.W.J. Cousins in the 1970s designed these filters for photomultiplier tubes (PMT).

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    Model#: Ic-27r

    In Stock

    $200.00

  11. Astrodon Photometric Sloan 50mm Unmounted Gen2 u' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 u' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
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    (48 States)
    Model#: u'2-50R

    Available

    $400.00

  12. Astrodon - MonsterMOAG 3" Standalone Off-Axis Guider - 2 Guide Port

    Astrodon - MonsterMOAG 3" Standalone Off-Axis Guider - 2 Guide Port

    MOAG means Manual Off-Axis Guider.  It allows the user to guide their telescope to obtain sharp, round stars by guiding in front of your filters using unfiltered light in the same optical beam as the imaging camera.

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    (48 States)
    Model#: MMOAG-2

    Available

    $1,050.00

  13. 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
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    (48 States)
    Model#: SII3-27R

    In Stock

    $490.00

  14. Astrodon Narrowband 1.25" Mounted SII 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted SII 5 nm Filter

    ... Learn More
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    (48 States)
    Model#: SII5-27R

    Available

    $330.00

  15. Astrodon Photometric Sloan 50mm Unmounted Gen2 r' Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 r' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: r'2-50R

    Available

    $400.00

  16. Astrodon - Gen2 E-Series LRGB Set - 50mm Unmounted Set

    Astrodon - Gen2 E-Series LRGB Set - 50mm Unmounted Set

    Astrodon 50mm Gen2 LRGB E-series filters are the pinnacle of high performance CCD filters. The E-Series Gen2 filters were designed for cameras containing the full-frame KAF8300, KAF3200, KAF6303, KAF16200, KAF16803 sensors, as well as most Sony and back-thinned sensors. ... Learn More
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    (48 States)
    Model#: LRGB2-E50R

    Available

    $950.00

  17. Astrodon 1.25" UVenus Mounted Filter

    Astrodon - 1.25" UVenus Mounted Filter

    Astrodon introduces a breakthrough in UV filters for CCD imaging. A  durable, hard--coated UV filter of the highest quality having the best transmission available.

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    Model#: UVENUS-27R

    In Stock

    $190.00

  18. Astrodon - Photometric Sloan - 1.25" Mounted Gen2 z' Edge Blackened Filter

    Astrodon - Photometric Sloan - 1.25" Mounted Gen2 z' Edge Blackened Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
    Learn More
    Model#: Z'2-27R

    In Stock

    $200.00

  19. Astrodon Gen2 I-Series LRGB (set of 4) Mounted in 31mm Inserts

    Astrodon - Gen2 E-Series LRGB Set - Mounted in 31mm Inserts

    Astrodon 31mm Gen2 LRGB E-series filters are the pinnacle of high performance CCD filters. The E-Series Gen2 filters were designed for cameras containing the full-frame KAF8300, KAF3200, KAF6303, KAF16200, KAF16803 sensors, as well as most Sony and back-thinned sensors. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LRGB2-E31R

    In Stock

    $525.00

  20. Astrodon Camera-side 2.156" Male Adapter for SBIG ST Cameras - 0.75" Long

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Like many successful ventures, Astrodon can trace its roots to one individual’s desire to fill a void in the marketplace. Astrophotography hobbyist Don Goldman wanted to capture some of the night sky’s most beautiful offerings in vivid color but was frustrated by the limitations of the RGB filters available in the early 2000s. Goldman became driven to simplify the imaging process so he set out to create high performing, color-balanced RGB filters that would eliminate extra steps in an already meticulous process. In 2003, he began manufacturing his signature LRGB filter design and Astrodon was born. Since then, Astrodon has expanded its offerings to include narrowband filters, research-grade photometric filters and off-axis guiding hardware to enhance the CCD astro-imaging experience. Now a leader in the premium astrophotography filter market, the company’s unwavering commitment to quality is reflected both in its choices — like the use of 100 percent hard-oxide sputtered coatings — and its increasing use at professional facilities like the famous Palomar Observatory.