Alpine Astronomical Baader 3.5nm H-alpha Enforced-Narrowband Filter (50x50mm Square)

BH #ALFHALNESQ50 • MFR #FHALNE-SQ50
Alpine Astronomical
Alpine Astronomical Baader 3.5nm H-alpha Enforced-Narrowband Filter (50x50mm Square)
Key Features
  • Deep-Sky Astrophotography and Imaging
  • Enhances Views of Dim Wispy Nebulae
  • For f/10 to f/3.5 Optical Systems
  • NOT Safe for Solar Viewing or Imaging
Designed to virtually eliminate the appearance of stars, use the Alpine Astronomical Baader 3.5nm H-alpha Enforced-Narrowband Filter during long-exposure astrophotography and imaging to isolate this narrow band and improve the visibility and contrast of even the faintest and most wispy nebulae—even in heavily light-polluted areas.
Special Order
Expected availability: 7-14 business days
$640.00
Sales and export of this item to South Korea are prohibited.
Jacob K., B&H Optics Expert

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Alpine Astronomical Baader Overview

Designed to virtually eliminate the appearance of stars, use the Alpine Astronomical Baader 3.5nm H-alpha Enforced-Narrowband Filter during long-exposure astrophotography and imaging to isolate this narrow band and improve the visibility and contrast of even the faintest and most wispy nebulae—even in heavily light-polluted areas.

This filter is ideally suited for optical systems from a fast f/3.5 to a more moderate f/10, including optical tube assemblies of all apertures and designs. The optical surfaces are dielectric anti-reflection coated and planeoptically polished to maximize light transmission with consistent and even throughput across the entire surface area. It is offered here unmounted in a 50x50mm square configuration for custom imaging rigs and applications and is ideal for long-exposure astrophotography to produce composite images when stacked and matted with multiple exposures using multiple band filters.

This filter is intended only for deep-sky astrophotography, and should never be used for direct solar viewing or photography as permanent injury to your eye and equipment can occur, up to and including blindness.

Alpine Astronomical Baader Specs

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