Happily Serving You in the Same Location for Over 58 Years!

Welcome!

Filters

15 Item(s)

per page

Set Descending Direction
  1. 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
    $395.00

  2. 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
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-OIII3
    $395.00

  3. Astrodon - 1.25" Narrowband filter 5 nm FWHM

    Astrodon - 1.25" Narrowband filter 5 nm FWHM

    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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-xx5
    $275.00

  4. QSI - Color Filter Wheel for 31mm Unmounted Filters (Upgrade)

    QSI - Color Filter Wheel for 31mm Unmounted Filters (Upgrade)

    Upgrade to five position color filter wheel for 500 Series ws and wsg models which accepts 31mm unmounted filters ... Learn More
    Model#: AC5-CFW31U
    $50.00

  5. QSI - Astrodon 1.25" LRGB Tru-Balance E-Series Gen 2 Filters

    QSI - Astrodon 1.25" LRGB Tru-Balance E-Series Gen 2 Filters

    Astrodon 1.25" LRGB Tru-Balance E-Series Gen 2 Filters. For use with internal color filter wheel in QSI 504, 516, 532 and 583 cameras ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-LRGBE
    $450.00

  6. 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
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-SII3
    $395.00

  7. QSI - Additional Color Filter Wheel

    QSI - Additional Color Filter Wheel

    Additional five position color filter wheel for 500 Series ws and wsi models. Ideal for quick change of additional filter sets. Accepts all standard 1.25" filters ... Learn More
    Model#: AC5-CFW
    $199.00

  8. 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
    $275.00

  9. 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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-OIII5
    $275.00

  10. 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
    $780.00

  11. 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
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-NII3
    $395.00

  12. 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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-SII5
    $275.00

  13. QSI - Color Filter Wheel for 31mm Unmounted Filters

    QSI - Color Filter Wheel for 31mm Unmounted Filters

    Additional five position color filter wheel for 500 Series ws models. Accepts 31mm unmounted filters plus standard 1.25" filters. Ideal for quick change of additional filter sets

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: AC5-CFW31
    $249.00

  14. QSI - Astrodon 1.25" luminance filter

    QSI - Astrodon 1.25" luminance filter

    Astrodon 1.25" Luminance Filter for QSI.

    ...
    Learn More
    Model#: FL1-AD-L
    $125.00

  15. 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
    FREE SHIPPING
    (48 States)
    Model#: FL1-AD-RC5
    $275.00

15 Item(s)

per page

Set Descending Direction