![New Cutting Edge Narrowbands Filter: STC Astro Duo-Narrowband - Vendor and Group Announcements - Cloudy Nights New Cutting Edge Narrowbands Filter: STC Astro Duo-Narrowband - Vendor and Group Announcements - Cloudy Nights](https://cdn2.hubspot.net/hub/2617213/hubfs/Products/STC/STC%20Astro%20Duo-NB_Cover_02%20caption.jpg?t=1515913205146&width=600&name=STC%20Astro%20Duo-NB_Cover_02%20caption.jpg)
New Cutting Edge Narrowbands Filter: STC Astro Duo-Narrowband - Vendor and Group Announcements - Cloudy Nights
![Check out these 5 stars reviews on STC Astro Duo-Narrowband Filter from the worldwide Cyclops Optics customers - Vendor and Group Announcements - Cloudy Nights Check out these 5 stars reviews on STC Astro Duo-Narrowband Filter from the worldwide Cyclops Optics customers - Vendor and Group Announcements - Cloudy Nights](https://go.cyclopsoptics.com/hubfs/Gallery/IC1848%20Prem%20K%20P%201024px.jpg)
Check out these 5 stars reviews on STC Astro Duo-Narrowband Filter from the worldwide Cyclops Optics customers - Vendor and Group Announcements - Cloudy Nights
![Do users of the STC duo narrow band filter recommend it. - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights Do users of the STC duo narrow band filter recommend it. - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights](https://i.imgur.com/UmQSday.jpg)