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

Welcome!

Filters

Items 1 to 20 of 966 total

per page
Page:
  1. 1

Set Descending Direction
  1. IDAS - Hutech - 72mm LPS Filter

    IDAS - Hutech - 72mm LPS Filter

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: LPS-P2-72
    $299.00

  2. Opticstar - 2" Nebula Deep Sky Filter

    Opticstar - 2" Nebula Deep Sky Filter

    This Opticstar 2" eyepiece is suitable for both visual observation and imaging these are all-in-one high-transmission deep sky filters.

    ...
    Learn More
    Model#: OSRIFNEB2

    Regular Price: $105.00

    Special Price: $99.75

  3. Orion - 2" Extra Narrowband Filter Set

    Orion - 2" Extra Narrowband Filter Set

    These specialized astrophotography filters pass select wavelengths and essentially block all other wavelengths of light, including light pollution, so you can capture images in less than ideal conditions.

    ...
    Learn More
    Model#: 25545
    $969.95

  4. Orion - 2" Extra-Narrowband Hydrogen Alpha Filter

    Orion - 2" Extra-Narrowband Hydrogen Alpha Filter

    Filter for astrophotography transmits 90% of light at 656.3nm wavelength (H-alpha).

    ...
    Learn More
    Model#: 05547
    $359.95

  5. Orion - 2" Extra-Narrowband Sulfur-II Filter

    Orion - 2" Extra-Narrowband Sulfur-II Filter

    Effectively blacken the background sky with extra-narrowband filters to produce striking, high-contrast astrophotography of emission nebulae. Orion's 2" Extra-Narrowband Sulfur-II Imaging Filter will do just that. It is ideal for use with monochrome CCD cameras like Orion's Parsec 8300M.

    ...
    Learn More
    Model#: 05546
    $359.95

  6. Orion - 2" Extra-Narrowband Oxygen III Filter

    Orion - 2" Extra-Narrowband Oxygen III Filter

    If you're using a monochrome CCD camera like Orion's Parsec 8300M, these specialized "line" filters are the perfect complement. Orion's 2" Oxygen-III Filter has a full-width half maximum (FWHM) bandpass of just 7nm, ensuring high-contrast images, even in heavily light-polluted or brightly moonlit skies. The filter can be used separately or in combination with a filter wheel for advanced tri-color imaging of emission nebulae.

    ...
    Learn More
    Model#: 05545
    $359.95

  7. SBIG - FW5-STX Filter Wheel

    SBIG - FW5-STX Filter Wheel

    Filter wheel for STX series cameras, 5-position 65mm square filters.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: FW5-STX
    $1,795.00

  8. 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.

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

  9. 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.

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

  10. 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.

    ...
    Learn More
    Model#: C2-27R_gen2
    $140.00

  11. 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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Y2-50S
    $440.00

  12. Astrodon - 50mm Gen 2 Unmounted Y Filter

    Astrodon - 50mm Gen 2 Unmounted Y Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Y2-50R
    $400.00

  13. Astrodon - 1.25" Gen 2 Mounted Y Filter

    Astrodon - 1.25" Gen 2 Mounted Y Filter

    NEW!  Astrodon introduces Generation 2 Sloan filters based upon ongoing input from research organizations.  The changes include

    ...
    Learn More
    Model#: Y2-27R
    $200.00

  14. 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

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: z_s2-50S
    $440.00

  15. Opticstar - 1.25" Infra-Red Cut-Off Imaging Filter

    Opticstar - 1.25" Infra-Red Cut-Off Imaging Filter

    For the use in CCD imaging this high-transmission filter will exclude any IR wavelengths beyond H-alpha showing a very steep desirable curve.

    ...
    Learn More
    Model#: OSRIFIR

    Regular Price: $45.00

    Special Price: $42.75

  16. Opticstar - 1.25" High Transparency Imaging Filters

    Opticstar - 1.25" High Transparency Imaging Filters

    These high transparency filters from Opticstar are placed 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.

    ...
    Learn More
    Model#: OSRHRGBI

    Regular Price: $150.00

    Special Price: $142.50

  17. IDAS - Hutech - 52mm LPS Filter

    IDAS - Hutech - 52mm LPS Filter

    ... Learn More
    Model#: LPS-P2-52
    $189.00

  18. IDAS - Hutech - 48mm (2" eyepiece) LPS Filter

    IDAS - Hutech - 48mm (2" eyepiece) LPS Filter

    48mm (2'"' eyepiece) LPS filter

    ...
    Learn More
    Model#: LPS-P2-48
    $189.00

  19. IDAS - Hutech - 28.6mm (1-0.25" eyepiece) LPS filter (formerly part #LPS-P31.7)

    IDAS - Hutech - 28.6mm (1-0.25" eyepiece) LPS filter (formerly part #LPS-P31.7)

    Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.

    ...
    Learn More
    Model#: LPS-P2-28.6
    $179.00

  20. IDAS Hutech SCT Filter adapter w/48mm Nebula Filter II

    IDAS - Hutech - SCT Filter adapter w/48mm Nebula Filter II

    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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: LPS-V4-48SCT
    $275.00

Items 1 to 20 of 966 total

per page
Page:
  1. 1

Set Descending Direction