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MAY 4 2026: APP 2.0.0-beta44 has been released !

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May 1 2026: APP 2.0.0-beta43 has been released !

Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.

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[Solved] OIII / SII Dual Band Filter

 
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Last Post by maxthebuilder 3 years ago
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 daniel.tackley
(@daniel-tackley)
White Dwarf
Joined: 8 years ago
Posts: 4
Topic starter September 26, 2023 15:08  

Have you seen the new OIII / SII dual band narrowband filter from Altair Astro?

https://www.altairastro.com/altair-sii-oiii--dualband-ultra-4nm-certified-cmos-filter-2x22-w-test-report-13147-p.asp

If I had one of these, would the Extract Ha debayer algorithm extract the Sulphur data?


This topic was modified 3 years ago by daniel.tackley

   
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filters dual-band SII OIII filter debayer
 Mabula-Admin
(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5254
September 29, 2023 15:08  

Hi Daniel, @daniel-tackley

Did not see it yet, thanks for sharing 🙂

Yes, Ha extract would then extract SII.

 



   
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 maxthebuilder
(@maxthebuilder)
Red Giant
Joined: 8 years ago
Posts: 39
September 30, 2023 05:48  

Also Antlia and Askar released similar products.

Antlia - Hb+Sii

Askar - Oiii+Sii

I am thinking of getting one of them and was wondering about how to separate those channels.



   
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 JuergenN
(@juergenn)
Neutron Star
Joined: 5 years ago
Posts: 85
September 30, 2023 08:46  

@maxthebuilder Its the same as with Ha/OIII filters: Red channel SII, Blue/green channel: Hb or OIII

I would get the OIII/SII filter, because there you can add integration time to OIII, which is also in the OIII/Ha-filters. Hb is normally just the same as Ha but in blue/green. Dont know why Antlia dont have an OIII/SII filter...

 

 



   
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 maxthebuilder
(@maxthebuilder)
Red Giant
Joined: 8 years ago
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September 30, 2023 08:54  

Juergen,

Yes, I was thinking along the same lines. Will get an Oiii/Sii.

Thanks!



   
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Topic Tags:  filters (6) , dual-band (5) , SII (6) , OIII (12) , filter (7) , debayer (12) ,
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