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Question on Ha-OIII extract Ha or OIII algorithms

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(@uu_vee)
White Dwarf
Joined: 2 years ago
Posts: 12
Topic starter  

Hello, are these algorithms usable on dual band monochrome lights? Wasn't sure if these were best suited to OSC's only. Thank you.


   
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(@wvreeven)
Quasar
Joined: 6 years ago
Posts: 2133
 

@uu_vee Hi Kurt,

No, these algorithms are not usable on dual band monochrome lights. The reason is that all photons are recorded as grey and information about the original wavelength gets lost. With OSC lights, Ha is (almost only, depending on the camera sensor) recorded in the R channel while OIII (almost only, depending on the camera sensor) in the G and B channels, which makes it possible to distinguish Ha and OIII from each other.

HTH, Wouter


   
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(@uu_vee)
White Dwarf
Joined: 2 years ago
Posts: 12
Topic starter  

@wvreeven thank you for the response and clear explanation. Much appreciated.


   
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