Nathan_Pembs Posted September 3, 2014 Share Posted September 3, 2014 We all know that stars come in various colours, red, yellow, orange, blue etc....so why when imaging with rgb filters (+lum) do all the stars look white?No colour to them at all?? Link to comment Share on other sites More sharing options...
PhotoGav Posted September 4, 2014 Share Posted September 4, 2014 What sub length is giving you these white stars? I'm guessing 'long'... Shorter sub lengths will keep the well from filling and star colour will be registered rather than just bleaching out to white. Link to comment Share on other sites More sharing options...
Nathan_Pembs Posted September 4, 2014 Author Share Posted September 4, 2014 Well, for each colour channel I've only been doing 120s subs and for the lum usually 240s? Link to comment Share on other sites More sharing options...
PhotoGav Posted September 4, 2014 Share Posted September 4, 2014 Mmmm... That's not long is it - unless your scope is f1.4 or something! Are you stretching the data a lot? Link to comment Share on other sites More sharing options...
Nathan_Pembs Posted September 4, 2014 Author Share Posted September 4, 2014 Hmm I don't think I'm over stretching it? Just adjusting the levels in Photoshop so I can see the target, DSS makes the tiffs so dark lolMaybe it's the settings in Artemis I need to adjust? Link to comment Share on other sites More sharing options...
PhotoGav Posted September 4, 2014 Share Posted September 4, 2014 Might be worth trying a small stretch for star colour only, ignoring the object itself, just to see if there is colour there that bleaches out when working on the main target? Link to comment Share on other sites More sharing options...
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