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  1. Baader Planetarium Set of 5 Photometric UBVRI Filters 1.25" (4mm Glass Thickness, Optically Polished)
  2. Chroma Technology - B-Band 50mm Filter

    Chroma Technology - B-Band 50mm Filter

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    Model#: B Band 50
    $175.00

  3. Chroma Technology - B-Band 27mm Filter

    Chroma Technology - B-Band 27mm Filter

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    Model#: B Band 27
    $137.00

  4. Chroma Technology - U-Band 50mm Filter

    Chroma Technology - U-Band 50mm Filter

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    FREE SHIPPING
    (48 States)
    Model#: U Band 50
    $275.00

  5. Chroma Technology - U-Band 27mm Filter

    Chroma Technology - U-Band 27mm Filter

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    Model#: U Band 27
    $137.00

  6. 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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    FREE SHIPPING
    (48 States)
    Model#: g'2-50S
    $440.00

  7. Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Square Filter

    Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Square Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

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    FREE SHIPPING
    (48 States)
    Model#: C2_50S_Gen2
    $295.00

  8. Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon - 50mm" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

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    FREE SHIPPING
    (48 States)
    Model#: C2_50R_Gen2
    $250.00

  9. Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon - 1.25" Gen 2 Parfocal UV Blocked Clear Filter

    Astrodon's new improvements of photometric Sloan filters generation 2 feature excellent out of band clocking and other edge-blackended compounds to reduce stray light reflections to assist in CCD imaging.

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    Model#: C2-27R_gen2
    $140.00

  10. Astrodon - 50mm Gen 2 Unmounted Square Y Filter

    Astrodon - 50mm Gen 2 Unmounted Square Y 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#: Y2-50S
    $440.00

  11. Chroma Technology - V-Band 27mm Filter

    Chroma Technology - V-Band 27mm Filter

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    Model#: V Band 27
    $110.00

  12. Chroma Technology - V-Band 50mm Filter

    Chroma Technology - V-Band 50mm Filter

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    FREE SHIPPING
    (48 States)
    Model#: V Band 50
    $220.00

  13. Chroma Technology - V-Band 50mm Square Filter

    Chroma Technology - V-Band 50mm Square Filter

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    FREE SHIPPING
    (48 States)
    Model#: V Band 50 Sq
    $220.00

  14. Astrodon 1.25" dia. Unmounted R Filter

    Astrodon - Photometric UVBRIc - 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
    $200.00

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

    Astrodon - Photometric UVBRIc - 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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    FREE SHIPPING
    (48 States)
    Model#: Rc*-50S
    $440.00

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

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

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

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    FREE SHIPPING
    (48 States)
    Model#: Rc*-50R
    $400.00

  17. Chroma Technology - I Band 50mm Square Filter

    Chroma Technology - I Band 50mm Square Filter

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    FREE SHIPPING
    (48 States)
    Model#: I Band 50 Sq
    $220.00

  18. Chroma Technology - I Band 50mm Filter

    Chroma Technology - I Band 50mm Filter

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: I Band 50
    $220.00

  19. Chroma Technology - I Band 27mm Filter

    Chroma Technology - I Band 27mm Filter

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    Model#: I Band 27
    $110.00

  20. Chroma Technology - R Band 50mm Square Filter

    Chroma Technology - R Band 50mm Square Filter

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    FREE SHIPPING
    (48 States)
    Model#: R Band 50 Sq
    $220.00

Items 1 to 20 of 46 total

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