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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
SVBONY UHC Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Ultra High Contrast Light Pollution Filter
SVBONY UHC Light Pollution Filter

SVBONY UHC Ultra High Contrast Light Pollution Filter

by SVBONY
SKU SV-F9131A
$24.00 - $50.31
$24.00
$24.00 - $50.31
$24.00
Price Match Policy!
  • Reduces light pollution from artificial lighting
  • Enhances contrast for emission nebulae
  • Available in 1.25", 2", and Canon EOS-C formats
  • Durable aluminum frame with high-quality optical glass
  • Includes a protective storage case
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Svbony UHC Filter for Light Pollution Reduction

    The Svbony UHC Filter, available in 1.25", 2", and EOS-C formats, isolates critical nebular emission lines from city light pollution. This Ultra High Contrast design significantly darkens the sky background, making faint structures in objects like the Orion Nebula (M42) visible even from suburban locations. By selectively filtering out disruptive wavelengths from sodium and mercury vapor lamps, it restores the deep-sky views lost to urban glow.

    Defeating Light Pollution: The UHC Advantage

    The core function of the Svbony UHC filter is to create a starker contrast between your target nebula and the sky. It achieves this by selectively rejecting the most common wavelengths associated with artificial streetlights and other urban light sources. This surgical removal of unwanted light darkens the sky background without eliminating the key hydrogen-beta and oxygen-III wavelengths emitted by planetary and emission nebulae.

    Maximizing Contrast on Emission Nebulae

    This filter is a specialized tool designed to make emission nebulae "pop" in the eyepiece or on a camera sensor. For visual observers in light-polluted areas, faint objects like the Lagoon Nebula (M8) or the Swan Nebula (M17) transform from indistinct smudges into structured objects with discernible detail. The filter effectively boosts the signal-to-noise ratio, revealing faint wisps of nebulosity that are otherwise completely washed out by the skyglow.

    Built for Durability in Multiple Formats

    Constructed with a durable, black-anodized aluminum frame and high-quality optical glass, the Svbony UHC filter is built for repeated use in the field. The filter is available in multiple formats to suit your equipment: standard 1.25" and 2" barrels that thread into most eyepieces and accessories, and a clip-in EOS-C model for Canon DSLR astrophotography. Each filter ships in a sturdy, transparent case to protect it from dust and scratches during storage and transport.

    Svbony UHC vs. CLS Filters: Choosing the Right Tool

    While both UHC and CLS (City Light Suppression) filters fight light pollution, they serve different purposes. A CLS filter is a more broadband option, which is better for maintaining natural star colors and viewing a wider variety of objects, including galaxies and reflection nebulae.

    The Svbony UHC filter is more aggressive and has a narrower bandpass. This results in a much darker sky and higher contrast specifically on emission nebulae, but it comes at the cost of dimming stars more significantly and altering their color. For pulling the faintest details out of planetary and emission nebulae, the UHC is the superior choice; for general-purpose skyglow reduction, a CLS may be more suitable.

  • What is the main difference between the Svbony UHC and a CLS filter?

    The Svbony UHC (Ultra High Contrast) filter is a narrowband filter that provides maximum contrast on emission and planetary nebulae by aggressively blocking most light pollution. A CLS (City Light Suppression) filter is more broadband, offering milder light pollution reduction but better performance on galaxies and clusters, with more natural star colors.

    How will the Svbony UHC filter improve my view of the Orion Nebula (M42) with an 8" SCT from the suburbs?

    From a suburban backyard, an 8" SCT will show the core of the Orion Nebula (M42), but the outer loops of nebulosity are often lost in the skyglow. The Svbony UHC filter will dramatically darken the background sky, making the faint, extended wings of the nebula stand out clearly and revealing more intricate detail within the Trapezium region.

    Can I use the Svbony UHC filter for photographing the North American Nebula (NGC 7000) with a DSLR?

    Yes, the Svbony UHC filter is an excellent choice for DSLR imaging of large H-alpha regions like the North American Nebula (NGC 7000). The EOS-C clip-in version is specifically designed for this purpose. It will help separate the nebula's faint red glow from a light-polluted background, allowing you to use longer exposures to capture more detail.

    Will the Svbony UHC filter make galaxies or star clusters brighter?

    No, it will make them fainter. Galaxies and star clusters are broadband objects, meaning they emit light across the entire visible spectrum. Because the UHC filter blocks large portions of this spectrum to fight light pollution, it will dim these objects. This filter is specifically designed for emission and planetary nebulae.

    Which Svbony UHC filter format (1.25", 2", or EOS-C) do I need?

    The choice depends on your equipment:

    • 1.25" Filter: For use with standard 1.25" eyepieces and accessories.
    • 2" Filter: For use with larger 2" eyepieces and accessories, typically for wide-field views.
    • EOS-C Filter: A clip-in filter designed to fit inside the body of a Canon DSLR camera with an APS-C sensor.

    How should I clean my Svbony UHC filter?

    First, use a blower bulb to remove any loose dust. If smudges or fingerprints remain, gently wipe the surface in a circular motion with a clean microfiber cloth and a few drops of a dedicated optical cleaning solution. Avoid using harsh chemicals or abrasive materials.

    • Svbony UHC Filter (Selected Size)

      × 1

    • Protective Storage Case

      × 1

  • Svbony 1-Year Warranty