I had a quick look the other night, during Full moon.
The $36 OIII filter is actually Very good.
I compared it to My Astronomics UHC and the difference is negligable on the targets I had available.
Totally washed out skies due to the moon and I observed :
Swan Nebula
Helix - Very Faint
Dumbbell
Really looking forward to using under better conditions
Stu
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