Thread: Review: Astrodon Narrowband 3nm H-Alpha and 3nm OIII Filters
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Old 29-04-2015, 05:02 PM
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Slawomir (Suavi)
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Quote:
Originally Posted by gregbradley View Post
3nm may be good for things like planetary.
Or when photographing from a site with very heavy light pollution, as the article indicated
Last edited by Slawomir; 29-04-2015 at 06:11 PM.
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