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  1. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s Edge Blackened Filter

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

    ...
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    FREE SHIPPING
    (48 States)
    Model#: z-s2-50R
    $400.00

  2. 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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    (48 States)
    Model#: OIII3-50R
    $995.00

  3. Astrodon Narrowband 1.25" Mounted SII 5 nm Filter

    Astrodon - Narrowband - 1.25" Mounted SII 5 nm Filter

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    (48 States)
    Model#: SII5-27R
    $330.00

  4. 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),

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    (48 States)
    Model#: HA3-36R
    $650.00

  5. 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
    $725.00

  6. 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
    $190.00

  7. Astrodon Photometric UVBRIc 50mm Unmounted Rc Edge Blackened Square Filter

    Astrodon - Photometric UVBRIc - Johnson-Cousins 50mm Unmounted Rc Edge Blackened Square 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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    (48 States)
    Model#: RC-50S
    $440.00

  8. 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),

    ...
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    (48 States)
    Model#: SII3-27R
    $490.00

  9. Astrodon 50mm Unmounted Clear UV Blocking (No NIR Blocking) Filter

    Astrodon - 50x50mm Unmounted Clear UV Blocking (No NIR Blocking) Square Filter

    UV-Blocked Clear filters with 395 nm cut-on and 97%T to 1000 nm often purchased with Astrodon photometric filters.

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    (48 States)
    Model#: C2-50S
    $320.00

  10. Astrodon 50mm Unmounted ExoPlanet-BB Filter

    Astrodon - 50mm Unmounted ExoPlanet-BB Filter

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

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    (48 States)
    Model#: XOPBB-50R
    $285.00

  11. Astrodon - Narrowband - 36mm Unmounted Red Continuum 5nm Filter

    Astrodon - Narrowband - 36mm Unmounted Red Continuum 5nm 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, 501 nm), sulfur (SII, 672nm) and others.

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    (48 States)
    Model#: RedCon5-36R
    $435.00

  12. 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
    $950.00

  13. Astrodon Photometric Sloan 1.25" Mounted Gen2 g' Edge Blackened Filter

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

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

    ...
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    Model#: G'2-27R
    $200.00

  14. 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
    $525.00

  15. Astrodon Photometric UVBRIc - 50x50mm Square Unmounted Johnson/Cousins UV Edge Blackened Filter

    Astrodon - Photometric UVBRIc - 50x50mm Square Unmounted Johnson/Cousins UV 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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    FREE SHIPPING
    (48 States)
    Model#: UV-50S
    $440.00

  16. Astrodon - Photometric Sloan - 1.25" Mounted Gen2 i' Edge Blackened Filter

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

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

    ...
    Learn More
    Model#: I'2-27R
    $200.00

  17. Astrodon Narrowband 36mm Unmounted SII 5 nm Filter

    Astrodon - Narrowband - 36mm Unmounted SII 5 nm Filter

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    FREE SHIPPING
    (48 States)
    Model#: SII5-36R
    $435.00

  18. Astrodon - Photometric UBVRIc - 50mm Unmounted Johnson/Cousins V Edge Blackened Filter

    Astrodon - Photometric UBVRIc - 50mm Unmounted Johnson/Cousins V 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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    FREE SHIPPING
    (48 States)
    Model#: V-50R
    $400.00

  19. Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square Filter

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z' Edge Blackened Square 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#: z'2-50S
    $440.00

  20. 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
    $435.00

Items 1 to 20 of 93 total

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