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  1. Astrodon Unmounted LRGB Gen2 I-Series 50mm Set

    Astrodon - Unmounted LRGB Gen2 I-Series 50mm Set

    The Astrodon I-Series Unmounted Gen2 Filters set are designed to approximately equalize the flux of  Interline CCD detectors (formerly Kodak), including compensation for the solar photon flux.  The I-Series filters compensate for the lower red response of these Interline detectors affecting the design of the Green and Red filters.

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    (48 States)
    Model#: LRGB2-I50R

    Available

    $950.00

  2. Astrodon Unmounted LRGB Gen2 I-Series 36mm Filter Set

    Astrodon - Unmounted LRGB Gen2 I-Series 36mm Filter Set

    I-Series filters are designed to approximately equalize the flux of  Interline CCD detectors (formerly Kodak), including compensation for the solar photon flux.

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    (48 States)
    Model#: LRGB2-I36R

    Available

    $675.00

  3. Astrodon Tru-Balance Generation 2 Luminance Filter - 50mm

    Astrodon - Tru-Balance Generation 2 Luminance Filter - 50mm

    Astrodon Tru-Balance LRGB filters have completely transformed CCD imaging. These filters are in high demand due to their straightforward use, and high optical throughput providing excellent colors for galaxies, star clusters and nebulae.

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    Model#: L2-50R

    Available

    $250.00

  4. 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

    In Stock

    $440.00

  5. Astrodon Photometric UVBRIc 50mm Unmounted Rc Edge Blackened Filter

    Astrodon - Photometric UVBRIc - Johnson-Cousins 50mm Unmounted Rc Edge Blackened Filter

    Astrodon Photometrics - UVBRI filters have been the standard for photometric measurements for decades.

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    Model#: RC-50R

    In Stock

    $400.00

  6. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - Johnson-Cousins 1.25" Mounted Rc 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#: rc-27r

    In Stock

    $200.00

  7. 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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    (48 States)
    Model#: UV-50S

    Available

    $440.00

  8. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - 50mm Unmounted Square 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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    (48 States)
    Model#: IC-50S

    Available

    $440.00

  9. Astrodon - Photometric UVBRIc - 50mm Unmounted Johnson/Cousins UV Edge Blackened Filter

    Astrodon - Photometric UVBRIc - 50mm 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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    (48 States)
    Model#: UV-50R

    Available

    $400.00

  10. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - 50mm Unmounted 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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    FREE SHIPPING
    (48 States)
    Model#: IC-50R

    Available

    $400.00

  11. Astrodon Photometric UVBRIc - 1.25" Mounted UV Edge Blackened Filter

    Astrodon - Photometric UVBRIc - 1.25" Mounted 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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    Model#: UV-27R

    In Stock

    $200.00

  12. 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

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

    Astrodon - Photometric UBVRIc - 50mm Unmounted Square 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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    (48 States)
    Model#: V-50S

    In Stock

    $440.00

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

    Astrodon - Photometric UBVRIc - 50mm Unmounted Square 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-50S

    In Stock

    $440.00

  15. 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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    (48 States)
    Model#: V-50R

    In Stock

    $400.00

  16. 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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    FREE SHIPPING
    (48 States)
    Model#: B-50R

    In Stock

    $400.00

  17. Astrodon - Photometric UBVRIc - 1.25" Mounted Johnson/Cousins V Edge Blackened Filter

    Astrodon - Photometric UBVRIc - 1.25" Mounted 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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    Model#: V-27R

    Available

    $200.00

  18. Astrodon - Photometric UBVRIc - 1.25" Mounted Johnson/Cousins B Edge Blackened Filter

    Astrodon - Photometric UBVRIc - 1.25" Mounted 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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    Model#: B-27R

    In Stock

    $200.00

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

    Astrodon - Photometric Sloan - 50mm Unmounted Gen2 z_s 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#: z-s2-50S

    Available

    $440.00

  20. 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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    (48 States)
    Model#: z-s2-50R

    Available

    $400.00

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