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Holiday Schedule: The showroom will be closed from Dec 22nd to Jan 2nd. Support will not be available in that period. Happy Holidays!
Holiday Schedule: The showroom will be closed from Dec 22nd to Jan 2nd. Support will not be available in that period. Happy Holidays!
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
$329.69 USD - $329.69 USD
$329.69 USD
$329.69 USD - $329.69 USD
$329.69 USD
  • 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
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  • Description
  • Specifications
  • In the Box

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

    Antlia ALP-T Dual Band Ha&OIII 3nm + SII&Hb 3.5nm 2inches Filter Set

    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

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