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Here's a comparison bteween the Duo filter and just a UV/IR filter
- First is with the STC Duo filter processed as a narrowband image. Split the R & GB channels and process as Halpha and OIII in pixinsight
- The second is just a UV-IR filter processed as OSC image
Both same camera & scope. And both about 6-7 hours of subs. 10min subs with duo filter and 2min subs with UV-IR.
The duo image still isn't great as I haven't got a great handle on narrowband processing yet.
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