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UHC filter
Hi SuperG
I use a Baader UHC-S with my DSLR through an ED100. I find it helps a lot, cutting light pollution and resolving detail. I don't have comparative images without the filter as I've never done longer than 40 second exposures in my bortle 5 skies without it. But I'll attach a recent M17 with and without curves stretching so you can see the detail I've been able to bring out with the UHC-S. I haven't compared the specs of this filter with the filters you're considering though, I assume they might be similar. It's a duo Ha Oiii fairly broad "narrowband" pass filter, as I understand it. I'm very new to this, about 6 months in.
Hope this helps.
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