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  1. 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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    (48 States)
    Model#: RC-50R

    In Stock

    $400.00

  2. Farpoint Romor 48mm UV Filter

    Farpoint - Romor 48mm UV Filter

    Romor 48mm threaded UV filter. Threads fit 2" eyepiece end forming a dust cap.

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    Model#: FP502

    In Stock

    $9.00

  3. Opticstar 1.25" CRGbB Filter Set

    Opticstar - 1.25" CRGbB Filter Set

    These filters are positioned within a thin metal ring with a full 26mm clear aperture that threads into the barrel of any standard 1.25" eyepiece or filter wheel that can accept 1.25" filters.

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    Model#: OSRCRGB

    Available - Ships in 2-4 Days

    $85.50

  4. IDAS - Hutech - UV/IR Blocking Filter (to be used with MFA37)

    IDAS - Hutech - UV/IR Blocking Filter (to be used with MFA37)

    IDAS Hutech UV/IR Blocking Filter (to be used with MFA37).

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    Model#: UIBAR-37

    Available - Ships in 2-4 Days

    $179.00

  5. IDAS - Hutech - Light Pollution Suppression Filter (to be used with MFA)

    IDAS - Hutech - Light Pollution Suppression Filter (to be used with MFA)

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    Model#: LPS-P2-37

    Available - Ships in 2-4 Days

    $189.00

  6. IDAS - Hutech - 37mm Nebular Filter II (to be used with MFA37)

    IDAS - Hutech - 37mm Nebular Filter II (to be used with MFA37)

    The IDAS LPS-V4 filter is designed to provide maximum contrast between key astronomical emission lines and a light polluted sky. These filters incorporate IDAS MBT, UFP, and IGAD technologies to insure undegraded and extremely durable optical performance.

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    Model#: LPS-V4-37

    Available - Ships in 2-4 Days

    $189.00

  7. Shelyak Instruments Star Analyser 100 and M42-31.75 Adapter

    Shelyak Instruments - Star Analyser 100 and M42-31.75 Adapter

    The Star Analyser 100 is a high efficiency 100 lines/mm transmission diffraction grating, blazed in the first order. It is mounted in a standard 1.25 inch diameter threaded cell, to be compatible with most telescopes and accessories. It has been designed to make the production of low resolution spectrum images of a wide range of point like astronomical objects as easy as possible.

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    Model#: PF0003+BA0016

    Available - Ships in 2-4 Days

    Regular Price: $239.95

    Special Price: $199.00

  8. Chroma filters

    Chroma Technology - Luminance 27mm Diameter Filter - Mounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: LUM-27

    Available - Ships in 2-4 Days

    $125.00

  9. Chroma filters

    Chroma Technology - Red 27mm Diameter Filter - Mounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: RED-27

    Available - Ships in 2-4 Days

    $125.00

  10. Chroma filters

    Chroma Technology - Green 27mm Diameter Filter - Mounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: GREEN-27

    Available - Ships in 2-4 Days

    $125.00

  11. Chroma Technology Blue 27mm Diameter Filter Mounted

    Chroma Technology - Blue 27mm Diameter Filter - Mounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: BLUE-27

    Available - Ships in 2-4 Days

    $125.00

  12. Chroma filters

    Chroma Technology - Blue 31mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Blue-31

    Available - Ships in 2-4 Days

    $130.00

  13. Chroma Technology - Green 31mm Diameter Filter - Unmounted

    Chroma Technology - Green 31mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Green-31

    Available - Ships in 2-4 Days

    $130.00

  14. Chroma Technology - Red 31mm Diameter Filter - Unmounted

    Chroma Technology - Red 31mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Red-31

    Available - Ships in 2-4 Days

    $130.00

  15. Chroma filters

    Chroma Technology - Luminance 31mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Lum-31

    Available - Ships in 2-4 Days

    $130.00

  16. Chroma filters

    Chroma Technology - Blue 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Blue-36

    Available - Ships in 2-4 Days

    $155.00

  17. Chroma filters

    Chroma Technology - Green 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Green-36

    Available - Ships in 2-4 Days

    $155.00

  18. Chroma filters

    Chroma Technology - Red 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Red-36

    Available - Ships in 2-4 Days

    $155.00

  19. Chroma Technology - Luminance 36mm Diameter Filter - Unmounted

    Chroma Technology - Luminance 36mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    Model#: Lum-36

    Available - Ships in 2-4 Days

    $155.00

  20. Chroma filters

    Chroma Technology - Luminance 50mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

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    (48 States)
    Model#: Lum-50

    Available - Ships in 2-4 Days

    $230.00

Items 121 to 140 of 421 total

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