SII Filters For Telescope

Transform your telescope into a powerful tool for deep-sky observation with our SII filters. Specifically engineered to highlight the sulfur II emission lines, these filters allow you to capture the intricate structures and hidden details of nebulae and other celestial phenomena. Perfect for both amateur and professional astronomers, our SII filters offer exceptional precision and depth. By isolating the specific wavelengths emitted by sulfur ions, these filters enhance the beauty and complexity of your night sky images, revealing features that are often invisible in broadband views.

  • ZWO SII Narrowband Filter 1.25" Inch (7nm)

    ZWO SII Narrowband Filter 1.25" Inch (7nm)

    ZWO SII Narrowband Filter 1.25" Inch (7nm)

    By blocking out unwanted light pollution and skyglow, the ZWO SII Narrowband Filter enhances the visibility of celestial objects, making it an indispensable addition to your astrophotography equipment.
    $179.00 USD
    $179.00 USD
  • Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm

    Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm

    Askar SII Narrowband (7nm) Filter 2" / 1.25" / 36mm / 31mm

    Perfect for capturing detailed images of SII emitting nebulae, planetary nebulae, and supernova remnants. Designed to mitigate the effects of light pollution, making it suitable for urban and suburban environments.
    From $199.00 USD
    From $199.00 USD
  • 48298393108693|48298393141461

    Optolong SII Narrowband 6.5nm Filter 2" / 1.25"

    Optolong SII Narrowband 6.5nm Filter 2" / 1.25"

    The Optolong SII Narrowband 6.5nm Filter is an essential tool for astrophotographers and astronomers who want to capture stunning images of the night sky. Its ability to capture specific wavelengths of light and reduce the impact of light pollution makes it invaluable for achieving detailed and high-contrast images of nebulae and other celestial objects.
    From $209.00 USD
    From $209.00 USD
  • 48296743174357

    Optolong SII Filter 2 Inch 6.5nm

    Optolong SII Filter 2 Inch 6.5nm

    The Optolong SII Filter 2 Inch 6.5nm is designed to isolate the Sulfur II (SII) emission line at 672nm, significantly enhancing the contrast and visibility of deep-sky objects. By blocking unwanted wavelengths, including those from light pollution, this filter ensures that you can capture clear and detailed images of nebulae, supernova remnants, and other emission line objects.
    $279.00 USD
    $279.00 USD
  • ZWO 2" SII Filter 7nm

    ZWO 2" SII Filter 7nm

    ZWO 2" SII Filter 7nm

    The ZWO 2" Narrowband SII Filter 7nm is primarily used for capturing and observing emission nebulae. By isolating the SII emission line, this filter enables astronomers and astrophotographers to see and photograph structures within nebulae that are often obscured by other wavelengths of light.
    $299.00 USD
    $299.00 USD