Les Tilly Posted May 30, 2009 Share Posted May 30, 2009 I went back over my HA and OIII image NGC6888 and followed the recipe by Steve Cannister bi color technique Cannistra Bicolor Narrowband Techniqueto combine HA OIII, HA for Red HA for synthetic Green, OIII for Blue and synthetic Green. Link to comment Share on other sites More sharing options...
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