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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.
Tele Vue BandMate Nebustar Filter
Tele Vue BandMate Nebustar Filter
Tele Vue BandMate Nebustar Filter

Tele Vue BandMate Nebustar Filter

par TeleVue
UGC TV-B2N-0125
$146.00 - $322.00
$146.00
$146.00 - $322.00
$146.00
Égalisation de prix!
  • Unique Narrowband Design: Transmits both Hβ and OIII emission lines in a single, targeted passband for maximum contrast.
  • Blocks Red Wavelengths: Unlike standard UHC filters, it eliminates red light to prevent star bloat and produce sharper, natural-looking stars.
  • Made in Germany by Astronomik: All materials and manufacturing are German-sourced and produced by a world leader in astronomical filters.
  • Individually Tested and Serialized: Every filter is optically tested by Tele Vue and spectrographically verified by Astronomik to ensure peak optical quality.
  • Universal Application: Engineered as a superior general-purpose nebula filter for telescopes of any aperture or design.
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Info disponibilité
Admissible à la livraison GRATUITE aux USA pour les commandes de plus de 350$.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Tele Vue BandMate Nebustar Filter

    The Tele Vue BandMate Nebustar Filter, available in 1.25" and 2" formats, is a unique narrowband nebula filter that transmits key Hβ and OIII emission lines while completely blocking red wavelengths to eliminate star bloat. Manufactured in Germany for Tele Vue by Astronomik, each serialized filter passes a 5-point inspection process, including optical and spectrographic testing, to guarantee zero image degradation.

    Hβ + OIII Transmission in 1 Filter

    The Nebustar's design captures the two most prominent non-red emission lines from nebulae—Oxygen-III and Hydrogen-beta—in a single, efficient passband. This dual-line transmission makes it a highly effective general-purpose tool, dramatically darkening the sky background and boosting contrast on a wide variety of targets.

    From the Veil Nebula (NGC 6960) to the Orion Nebula (M42), the filter reveals faint structures that are often lost to urban skyglow. It excels in telescopes of all apertures by isolating the nebula's light from the background, making faint details pop into view.

    A 5-Point Quality Control Process for Zero Image Degradation

    Every BandMate Nebustar filter is held to a standard far exceeding typical production filters. Each unit is individually serialized and subjected to a comprehensive, multi-stage inspection process by both Astronomik in Germany and Tele Vue in the USA to ensure it will not alter the pristine views your telescope produces.

    • Spectrographic Analysis: Astronomik verifies that the coating's transmission curve meets the exact design specification for the Hβ and OIII passband.
    • Optical Testing: Tele Vue inspects each filter at high power to ensure it does not degrade image sharpness or introduce any optical aberrations.
    • Mechanical Testing: The filter housing is tested for proper threading and fit in standard 1.25" or 2" accessories.
    • Cosmetic Inspection: A detailed visual check is performed to screen for any pinholes, digs, or sleeks in the coating.
    • Serialization: Each filter receives a unique serial number, creating a permanent record of its quality control passage.

    Nebustar vs. Standard UHC: Why Blocking Red Matters

    The critical distinction between the Nebustar and a traditional UHC (Ultra High Contrast) filter is its treatment of the red end of the spectrum. Standard UHC filters also pass the red Hydrogen-alpha line, which can cause bright, reddish stars to appear bloated and unnaturally colored, distracting from the nebula itself.

    By specifically blocking all red wavelengths, the Nebustar produces a view with tighter, sharper, and more color-neutral stars. This creates a more aesthetically pleasing image where the subtle blues and greens of planetary and emission nebulae stand out against a dark background populated with pinpoint stars.

  • What makes the Tele Vue Nebustar different from a regular UHC filter?

    The primary difference is that the Tele Vue Nebustar blocks red wavelengths. Standard UHC filters pass red light (specifically H-alpha), which can cause bright stars to look bloated and reddish. The Nebustar's design provides enhanced nebulosity with sharper, more natural-looking stars.

    Will the Tele Vue Nebustar filter work well on the Orion Nebula (M42) in my 8" Dobsonian?

    Yes, absolutely. The Nebustar is an excellent choice for the Orion Nebula (M42). It passes both the Hβ and OIII lines, which are strong in this object, allowing you to see fainter, intricate details in the nebula's wings and the Trapezium region while suppressing light pollution and sharpening surrounding stars.

    Is the Tele Vue Nebustar a good filter for galaxies like Andromeda (M31)?

    No, the Nebustar is not recommended for galaxies. Galaxies are broadband objects, meaning they emit light across the entire visible spectrum. A narrowband filter like the Nebustar will block most of a galaxy's light, making it appear much dimmer. For galaxies, it's best to observe from a dark sky site without a filter.

    Why does Tele Vue have Astronomik in Germany make the Nebustar filter?

    Tele Vue partners with Astronomik because they are a world leader in producing high-quality, dielectrically-coated astronomical filters with precise transmission characteristics. Every filter is made in Germany, then independently tested by Tele Vue in the USA to ensure it meets their rigorous standards for optical quality, guaranteeing it won't degrade the image from your telescope.

    Can I use the Tele Vue Nebustar filter for astrophotography?

    While designed for visual use, the Nebustar can be used for color imaging. However, because it blocks red light, it prevents the capture of H-alpha, which is a critical wavelength for many emission nebulae. For serious astrophotography, dedicated multi-band or single-band (H-alpha, OIII, SII) filters are generally preferred.

    How does the Tele Vue Nebustar perform on the Veil Nebula (NGC 6960) with a large refractor?

    The Veil Nebula is a classic OIII target, and the Nebustar performs exceptionally well on it. In a refractor, the filter will make the delicate, filamentary structure of the Veil stand out dramatically against a blackened sky background. The sharp, pinpoint stars delivered by the filter will complement the high-quality optics of your telescope.

  • Filter Type Narrowband Nebula Filter
    Passband Hβ (Hydrogen-Beta) and OIII (Oxygen-III)
    Blocked Wavelengths Includes all red wavelengths
    Available Sizes 1.25" and 2" (threaded for standard eyepieces/accessories)
    Primary Use General-purpose visual observation of nebulae
    Manufacturer Astronomik, Germany (for Tele Vue)
    Quality Control Individually tested (Optical, Spectrographic, Mechanical, Cosmetic) and Serialized

    • Tele Vue BandMate Nebustar Filter

      × 1 (in selected size)

    • Protective Case

      × 1

  • Tele Vue Warranty