Cloud Break Optics

Hydrogen-Alpha Narrowband Filter

Hydrogen-Alpha Narrowband Filter - Main image
$206.25 $275 In stock

Category: Filters

Description

H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-Alpha from the SII doublet (671.6nm and 673.1nm).

Specifications

  • Parfocal for systems f/4.0 or slower
  • Transmitted wavefront better than 0.25 waves/inch
  • Parallelism: less than 30 arcsec
  • Made in America
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Customer Reviews (5.0 / 5 · 5 reviews)

Abigail I. ★★★★★

Finally got this installed on my rig and the difference in my nebula shots is night and day — the narrow 3nm bandwidth really blocks out all the light pollution I’ve been fighting. I was able to capture the Veil Nebula with structure I’ve never seen before from my backyard.

David ★★★★★

The 656.3nm wavelength cuts through light pollution perfectly, finally revealing the Veil Nebula in my images. I had to dial in the focus carefully, but the contrast on the hydrogen regions is incredible. This filter made my narrowband setup feel complete.

Eli P. ★★★★★

Waited for clear skies to test this on the Orion Nebula, and the 656.3nm bandpass really made the hydrogen detail pop out. My subs have noticeably more contrast than with the wider filter I was using before.