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Alpine Astronomical H-Alpha 20nm Bandpass Filter (1.25″)

Original price was: $180.99.Current price is: $90.50.

SKU: VC84643934208 Category:
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Description

Alpine Astronomical FHALW-1 Overview

This 1.25″ Baader H-alpha 20nm Bandpass Filter from Alpine Astronomical is a high-contrast deep-sky, H-alpha/red filter for RGB astroimaging with CCD and CMOS cameras and telescopes of all focal ratios. The filter allows high-contrast images of H-II regions, even in light-polluted areas. UV/IR blocking eliminates blurring or heat-noise from defocused light on refractor optics.

  • Increased contrast, matched for typical CMOS quantum efficiency and s/n ratio
  • Reflex-Blocker coatings, for freedom from halos, even under most adverse conditions concerning aux-optics
  • 6mm low-profile filter cell
  • Identical filter thickness to existing standards, with utmost care for parfocality
  • Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
  • Each filter coated individually, with sealed coating edge
  • Life-Coat hard coatings to enable a non-aging coating for life, even in adverse environments

In the Box

  • Alpine Astronomical H-Alpha 20nm Bandpass Filter (1.25″)
  • Limited 2-Year Manufacturer Warranty

Additional Resources

No additional resources available

Alpine Astronomical FHALW-1Specs

Size 1.25″ / 31.8 mm

Packaging Info

Package Weight 0.125 lb
Box Dimensions (LxWxH) 3.75 x 3 x 0.95″

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