![The Horsehead with a Baader Ultra-Narrowband H-alpha 3.5nm filter - Equipment (No astrophotography) - Cloudy Nights The Horsehead with a Baader Ultra-Narrowband H-alpha 3.5nm filter - Equipment (No astrophotography) - Cloudy Nights](https://www.cloudynights.com/uploads/monthly_01_2021/post-9328-0-27269000-1611245839.jpg)
The Horsehead with a Baader Ultra-Narrowband H-alpha 3.5nm filter - Equipment (No astrophotography) - Cloudy Nights
![First result with Baader H-alpha filter - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights First result with Baader H-alpha filter - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights](https://www.cloudynights.com/uploads/monthly_01_2007/post-15019-14071012283191.jpg)
First result with Baader H-alpha filter - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights
![Baader H-Alpha 3.5nm vs 7nm - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights Baader H-Alpha 3.5nm vs 7nm - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights](https://farm1.staticflickr.com/426/32618632876_6515006cde_k.jpg)
Baader H-Alpha 3.5nm vs 7nm - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights
![Baader CMOS-Optimized 3.5nm H-Alpha Ultra-Narrowband Filter - 36mm Round Unmounted # FCHALNU-RD36 2961327 Baader CMOS-Optimized 3.5nm H-Alpha Ultra-Narrowband Filter - 36mm Round Unmounted # FCHALNU-RD36 2961327](https://agenaastro.com/media/catalog/product/cache/8e03964313a1df06445707bf7088f1a0/b/a/baader-h-alpha-36mm-ultra-narrowband-filter-35nm-cmos-optimized-4d9_1.jpeg)