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Old 16-10-2019, 11:12 PM
AnakChan (Sean)
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AnakChan is offline
 
Join Date: Sep 2014
Location: Perth
Posts: 272
Somehow, from the results of the Triad Ultra Quad NB, I still feel it's rather strongly Ha dominated, so I don't know who much "better" it is than the STC DuoNB (which I have).

Recently I've been more keen on the IDAS NB2-PM and NB3-PM. I'm thinking of using these two instead to combine to get a little more Oiii control in the final image.

Here's a sample NB3-PM which I took last week of the Helix Nebula (total of 3 hrs of 10 min subs - taken at ISO 2000 via my CentralDS cooled Astro A7S, through my Takahashi 250CRS).

P.S. and a single 5 min sub of the NB2-PM. Waiting for the moon to go bye bye to take more subs for the NB2-PM before final combination.
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Click for full-size image (NB2-PM.jpg)
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