Astronomik H-beta 12nm CCD-Filter
Harry sees more of the Great Nebula in Orion through a Hydrogen-beta filter than in white light – Observations
Baader H-beta Narrowband-Filter (5.5nm) – CMOS-optimized — Alpine Astronomical LLC
Astronomik H-beta Filter
OVL H-Beta 2 inch filter (visual use) - BBC Sky at Night Magazine
Lumicon H-Beta filter 1.25''
Chroma H-Beta (3nm) Imaging Filter - 2" Mounted # CT-27004-2M
Svbony Telescope Filter 1.25" H-beta 25nm Astronomy Monocular Telescope For Horsehead/california Nebula Enhance Contrast Sv132 - Filter - AliExpress
Amazon.com : SVBONY SV132 Telescope Filter H-Beta Filter 25nm 1.25 inches Eyepiece Filter for Horsehead Nebula California and Cocoon Nebulae in Dark Skies : Electronics
Test review: Baader CMOS-optimized 5.5nm H-Beta Narrowband Filter / Baader Planetarium Blog Posts
Amazon.com : Astromania 2" Narrowband H-Beta Filter : Electronics
Reports - Useful filters for viewing DSOs
Horsehead Nebula IC434, Can I see it with 5"? - General Observing and Astronomy - Cloudy Nights
NGC 6888: Ha3.5, OIII, H-beta ( Stephen Garretson ) - AstroBin
A report on visual use of the Baader H-Beta 5.5nm CMOS filter / Baader Planetarium Blog Posts
H-alpha H-beta OIII Imaging Filter, Rowe-Ackermann Schmidt Astrograph | Celestron
Dobsons bauen und Deep Sky, Reiner Vogel
Test review: Baader CMOS-optimized 5.5nm H-Beta Narrowband Filter / Baader Planetarium Blog Posts
Baader H-beta 8.5nm CCD Narrowband-Filter 2 inch
Welcome to ICSTARS Astronomy
Chroma H-beta Filter - 3nm - David Astro
Baader H-Beta Narrowband-Filter (5.5nm) – CMOS-optimized
Test review: Baader CMOS-optimized 5.5nm H-Beta Narrowband Filter / Baader Planetarium Blog Posts
Skywatcher 2" H-Beta filter
Chroma H-beta Filter - 5nm - David Astro
Amazon.com : SVBONY SV132 Telescope Filter H-Beta Filter 25nm 1.25 inches Eyepiece Filter for Horsehead Nebula California and Cocoon Nebulae in Dark Skies : Electronics
