Astrodon

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  1. Astrodon - T-Thread Stop-Ring for top of Helical Focuser

    $55.00
    SKU: ADO-STOP-RING

    Wait Time is 3-5 Days

  2. Astrodon - Camera-side 3" Male Adapter - 0.75" Long

    $105.00
    SKU: ADO-MMOAG-3-L

    Wait Time is 3-5 Days

  3. Astrodon - 92mm/2.7" Female/Female Adapter for Takahashi CAA Rotator

    $105.00
    SKU: ADO-CAA-APF

    Wait Time is 3-5 Days

  4. Astrodon - Adapter 2" Male 0.75" Long for FLI CFW-2-7

    $105.00
    SKU: ADO-MMOAG-F-L

    Wait Time is 3-5 Days

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

    $725.00
    SKU: ADO-SII5-50R

    Wait Time is 3-5 Days

    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.

    FREE SHIPPING(48 States)
  6. Astrodon - Photometric Sloan - 1.25" Gen 2 Mounted Y Filter

    $200.00
    SKU: ADO-Y2-27R

    Wait Time is 3-5 Days

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

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

    $725.00
    SKU: ADO-OIII5-50R

    Wait Time is 3-5 Days

    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.
    FREE SHIPPING(48 States)
  8. Astrodon - Photometric UBVRIc - 50mm Unmounted Johnson/Cousins B Edge Blackened Filter

    $400.00
    SKU: ADO-B-50R

    In stock

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

    FREE SHIPPING(48 States)
  9. Astrodon - 36mm Unmounted OIII 3nm Filter - Narrowband

    $650.00
    SKU: ADO-OIII3-36R

    Wait Time is 3-5 Days

    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),

    FREE SHIPPING(48 States)
  10. Astrodon - 36mm H-Alpha 5nm Narrowband Filter - Unmounted

    $435.00
    SKU: ADO-HA5-36R

    In stock

    Bring out the faint structures In nebulae with the Astrodon H-Alpha Narrowband 36mm Unmounted Filter.
    FREE SHIPPING(48 States)
  11. Astrodon - Photometric UVBRIc - 1.25" Mounted Johnson-Cousins Ic Edge Blackened Filter

    $200.00
    SKU: ADO-IC-27R

    In stock

    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).

  12. Astrodon - Gen2 I-Series LRGB Set - Mounted in 31mm Inserts

    $525.00
    SKU: ADO-LRGB2-I31R

    Wait Time is 3-5 Days

    FREE SHIPPING(48 States)
  13. Astrodon - Narrowband - 1.25" Mounted H-Alpha 3 nm Filter

    $490.00
    SKU: ADO-HA3-27R

    In stock

    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),

    FREE SHIPPING(48 States)
  14. Astrodon - Narrowband - 1.25" Mounted SII 5 nm Filter

    $330.00
    SKU: ADO-SII5-27R

    Wait Time is 3-5 Days

    FREE SHIPPING(48 States)
  15. Astrodon - Photometric Sloan - 1.25" Mounted Gen2 u' Edge-Blackened Filter

    $200.00
    SKU: ADO-U2-27R

    In stock

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

  16. Astrodon - MonsterMOAG 3" Standalone Off-Axis Guider - 1 Guide Port

    $875.00
    SKU: ADO-MMOAG-1

    Wait Time is 3-5 Days

    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.

    FREE SHIPPING(48 States)
  17. Astrodon - Gen2 E-Series LRGB Set - 36mm Unmounted Set

    $675.00
    SKU: ADO-LRGB2-E36R

    Wait Time is 3-5 Days

    FREE SHIPPING(48 States)
  18. Astrodon - 1.25" UVenus Mounted Filter

    $190.00
    SKU: ADO-UVENUS-27R

    In stock

    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.

  19. Astrodon - Photometric Sloan - 1.25" Mounted Gen2 r' Edge Blackened Filter

    $200.00
    SKU: ADO-R2-27R

    In stock

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

  20. Astrodon - Adapter 2" Male 0.2" Long for FLI CFW-2-7

    $105.00
    SKU: ADO-MMOAG-F-S

    Wait Time is 3-5 Days

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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.