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Filters for Imaging

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  1. ZWO UV IR CUT Filter - 1.25"

    ZWO - UV IR CUT Filter - 1.25"

    ZWO 1.25" IR UV CUT filter is suitable for color camera with AR protect window.

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    Model#: IRCUT1

    In Stock

    $25.00

  2. ZWO 20nm CH4 Filter - 1.25"

    ZWO - 20nm CH4 Filter - 1.25"

    The ZWO Methane band (CH4) filter is a special filter for photographical use.

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    Model#: ZWO-CH4

    In Stock

    $99.00

  3. TO - LP-4  H-Beta (Red Cell)  2"

    TO - LP-4 H-Beta (Red Cell) 2"

    LP-4 H-Beta (Red Cell) 2" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
    Model#: LP4-2

    Available - Ships in 2-4 Days

    $179.00

  4. TO - LP-4  H-Beta (Red Cell)  1.25"

    TO - LP-4 H-Beta (Red Cell) 1.25"

    Thousand Oaks Optical LP-4 H-Beta (Red Cell) 1.25" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
    Model#: LP4-1.25

    Available - Ships in 2-4 Days

    $89.00

  5. TO - LP-3  OIII (Green Cell)  2"

    TO - LP-3 OIII (Green Cell) 2"

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    Model#: LP3-2

    Available - Ships in 2-4 Days

    $179.00

  6. TeleVue - OIII Bandmate Filter 2"*

    TeleVue - OIII Bandmate Filter 2"*

    This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: BFO-0200

    Available - Ships in 2-4 Days

    5% off

    Regular Price: $315.00

    Special Price: $299.25

  7. TeleVue - OIII Bandmate Filter 1.25"*

    TeleVue - OIII Bandmate Filter 1.25"*

    This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
    Model#: BFO-0125

    In Stock

    5% off

    Regular Price: $175.00

    Special Price: $166.25

  8. Takahashi - 95mm UV-Haze Filter

    Takahashi - 95mm UV-Haze Filter

    Get rid of UV haze from observing using this brilliant 95mm filter special from Takahashi.

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    FREE SHIPPING
    (48 States)
    Model#: TFT0095

    Call for Availability

    $229.95

  9. Shelyak Instruments Star Analyser 200-F Filter

    Shelyak Instruments - Star Analyser 200-F Filter

    The Star Analyser 200-F is a high efficiency 200 lines/mm transmission diffraction grating, blazed in the first order. It is mounted in a standard 1.25 inch diameter low profile threaded cell, therefore fitting well with most telescopes and accessories and in thin filter wheels.

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    Model#: pf0040

    In Stock

    Regular Price: $235.00

    Special Price: $165.00

  10. 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

  11. QSI - Astrodon 1.25" SII filter 5 nm FWHM

    QSI - Astrodon 1.25" SII filter 5 nm FWHM

    Astrodon Sulfur II filter with a FWHM of 5nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB Gen2 color filters

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    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-SII5

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $320.00

  12. QSI - Astrodon 1.25" SII filter 3 nm FWHM

    QSI - Astrodon 1.25" SII filter 3 nm FWHM

    Astrodon Sulfur II filter with a FWHM of 3nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB Gen2 olor filters ... Learn More
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    (48 States)
    Model#: FL1-AD-SII3

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $480.00

  13. QSI - Astrodon 1.25" Red Continuum filter 5 nm FWHM

    QSI - Astrodon 1.25" Red Continuum filter 5 nm FWHM

    Astrodon Red Continuum filter centered on 645nm with a FWHM of 5nm. For use with internal color filter wheel in QSI 500 Series cameras ... Learn More
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    (48 States)
    Model#: FL1-AD-RC5

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $320.00

  14. QSI - Astrodon 1.25" OIII filter 5 nm FWHM

    QSI - Astrodon 1.25" OIII filter 5 nm FWHM

    Astrodon Oxygen III filter with a FWHM of 5nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB color filters

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    (48 States)
    Model#: FL1-AD-OIII5

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $275.00

  15. QSI - Astrodon 1.25" OIII filter 3 nm FWHM

    QSI - Astrodon 1.25" OIII filter 3 nm FWHM

    Astrodon Oxygen III filter with a FWHM of 3nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB color filters ... Learn More
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    (48 States)
    Model#: FL1-AD-OIII3

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $480.00

  16. QSI - Astrodon 1.25" NII filter 3 nm FWHM

    QSI - Astrodon 1.25" NII filter 3 nm FWHM

    Astrodon Nitrogen II filter with a FWHM of 3nm. For use with internal color filter wheel in QSI 500 Series cameras. This filter is parfocal with Astrodon LRGB Gen2 color filters ... Learn More
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    (48 States)
    Model#: FL1-AD-NII3

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $480.00

  17. QSI - Astrodon 1.25" luminance filter

    QSI - Astrodon 1.25" luminance filter

    Astrodon 1.25" Luminance Filter for QSI.

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    Model#: FL1-AD-L

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $145.00

  18. QSI - Astrodon 1.25" Hydrogen-alpha filter 5 nm FWHM

    QSI - Astrodon 1.25" Hydrogen-alpha filter 5 nm FWHM

    Astrodon Hydrogen-Alpha filter with a FWHM of 5nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB Gen2 color filters ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-HA5

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $320.00

  19. QSI - Astrodon 1.25" Hydrogen-alpha filter 3 nm FWHM

    QSI - Astrodon 1.25" Hydrogen-alpha filter 3 nm FWHM

    Astrodon Hydrogen-Alpha filter with a FWHM of 3nm. For use with internal color filter wheel in QSI 500 Series cameras. This Ha filter is parfocal with Astrodon LRGB color filters ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-HA3

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $480.00

  20. QSI - Astrodon 1.25" BVRIc Photometric filters

    QSI - Astrodon 1.25" BVRIc Photometric filters

    Astrodon 1 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-BVRI

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $780.00

Items 1 to 20 of 421 total

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