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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.
Antlia ALP-T Dual Band SII&Hβ 3.5nm

Antlia ALP-T Dual Band SII&Hβ 3.5nm

by David Astro
SKU ANT-ALP-T-3NM-SIIHB
$360.00 USD - $360.00 USD
$360.00 USD
$360.00 USD - $360.00 USD
$360.00 USD
Price Match Policy!
  • Precise Narrowband Filtering for Exceptional Contrast
  • Enhanced Transmission for Superior Signal-to-Noise Ratio
  • Anti-Reflection Coating to Reduce Halo Effect
  • Optimized for Fast Optics up to f/2
Availability:
Backordered
Contact us to know when we will receive our next ones!

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More information

  • Description
  • Specifications
  • In the Box

  • Antlia ALP-T Dual Band SII&Hβ 3.5nm - Overview

    The Antlia ALP-T Dual Band Filter Set is a high-performance toolset designed for astrophotographers who demand precision, contrast, and exceptional image quality. This set includes the Ha&OIII 3nm Filter and the SII&Hβ 3.5nm Filter, providing unmatched narrowband imaging capability for capturing deep-sky objects with remarkable clarity and detail.

    High Signal-to-Noise Ratio

    Superior imaging in challenging light conditions.

    Versatile Applications

    Suitable for capturing traditional RGB images or creating artistic false-color palettes.

    Easy Integration

    Compatible with optics slower than f/4, with high-speed versions available for faster setups.

    SII&Hβ 3.5nm Filter

    The SII&Hβ filter captures the deep red Sulfur-II (672.4nm) and blue Hydrogen-Beta (486.1nm) emission lines, providing complementary spectral data to the Ha&OIII filter. It’s perfect for creating detailed narrowband images and vibrant false-color palettes.

    • Dual Narrowband Capture: Captures SII and H-beta lines simultaneously for rich spectral imaging.
    • Enhanced Imaging Contrast: Blocks optical density (OD) 4.5 on unwanted wavelengths, optimizing contrast even in light-polluted conditions.
    • Creative Color Palettes: Enables various combinations like H-O-Hβ or S-H-O for unique astrophotography.
    Sii&Hb

  • SII&Hβ 3.5nm Filter

    FWHM

    3.5mm

    Peak Transmission

    90% (SII), 85% (Hβ)

    Blocking

    ≥ OD4.5 (300-1100nm)

    Ring Design

    Ultra-thin and black anodized to minimize reflections
    • HaOIII

      SII&Hβ Filter

      × 1