![Chroma 36mm Circular Ha/sii/oiii 3nm Narrowband Astrophotography Ccd Imaging Filter (free Shipping) - Telescope & Binoculars - AliExpress Chroma 36mm Circular Ha/sii/oiii 3nm Narrowband Astrophotography Ccd Imaging Filter (free Shipping) - Telescope & Binoculars - AliExpress](https://ae01.alicdn.com/kf/S1b68180e5b9248c4afe4a358d8c71e0du.jpg)
Chroma 36mm Circular Ha/sii/oiii 3nm Narrowband Astrophotography Ccd Imaging Filter (free Shipping) - Telescope & Binoculars - AliExpress
![Astrophotography Filters | Ccd Imaging Filters | Imaging Filter Set | Chroma Filter - Telescope & Binoculars - Aliexpress Astrophotography Filters | Ccd Imaging Filters | Imaging Filter Set | Chroma Filter - Telescope & Binoculars - Aliexpress](https://ae01.alicdn.com/kf/S726584f114904668900c4dca81756bb0X/Chroma-LRGB-Imaging-Filter-Set-50mm-Round-Unmounted-CCD-Imaging-Filters-Astrophotography-Filters-CT-27101.jpg)
Astrophotography Filters | Ccd Imaging Filters | Imaging Filter Set | Chroma Filter - Telescope & Binoculars - Aliexpress
![Christophe Leterrier @christlet@mas.to on Twitter: "I'm surprised that no microscopist has screamed at me yet - I wonder if using flipped dichroics (glass on the "wrong" side) can lead to yet unseen Christophe Leterrier @christlet@mas.to on Twitter: "I'm surprised that no microscopist has screamed at me yet - I wonder if using flipped dichroics (glass on the "wrong" side) can lead to yet unseen](https://pbs.twimg.com/media/DRHwYiuX0AIO3i0.jpg:large)