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NB + LP filters


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 Been having a play with my new mount taking a few 1200 sec HA subs and just realized I've left the IDAS LP filter on the camera.

Will this degrade the HA images, should I scrap them or will they be usable, will they combine with ones taken without the LP filter ?


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My IDAS stays in place in front of all filters - Ha , OII, Lum & RGB. Doesn't make any difference to narrowband subs, I just leave it in to preserve orientation and flats (& I'm lazy), no need to throw those subs away.

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