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l-eNhance filter ngc2174


alacant

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2 hours ago, ebdons said:

Oii

Hi

I'm not an expert, but I think not. It caters chiefly for H-alfa and Oiii.

My local Spanish group wanted a side by side comparison of lp filters. Not for lp, rather the colour they gave. I drew the short straw!

Cheers

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9 hours ago, ebdons said:

not oii

opt_l-enhance_transmission.png.cef9aa485354fec41353a04bc5574822.png

Hi

Maybe Hii (AKA H-beta?) which according to Optolong's graph, shows as blue. This is RGB. If you like, you can process with those blue/yellow HSO and HOO false colour schemes too. But I don't like.

Cheers

 

Edited by alacant
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