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I started with the STC duo band, and then went to an optolong l-extreme (but haven't gone to the more recent 3nm bandpass type duo filters). It was a big improvement. I noticed two things that improved my images.
1. The Ha versus OIII (on the R versus BG splits) differed to each other alot more with the l-extreme. So they were separating better.
2. But the main thing was that the noise on the OIII (and the Ha, but this signal is usually large) was a heck of a lot less due to the narrower bandpass.
I can't show anything to prove this as I slacked off and stopped putting up my images on astrobin about the same time I swapped to the l-extreme. So all very subjective ... but I believe it, and you have to believe something
Last edited by ChrisV; 29-04-2023 at 01:41 PM.
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