steviemac500 Posted April 15, 2016 Share Posted April 15, 2016 Here's my humble offering from last night. 30 subs @ 5mins. ISO 800 with 20 flats, 15 darks and bias. Dithered with PHD and APT. I'd be happier if i could get more of the colours that Chris had on his - mne seems a bit too red even though the channels were aligned in DSS post processing. What do you think? Steve 5 Link to comment Share on other sites More sharing options...
Starwiz Posted April 15, 2016 Share Posted April 15, 2016 Very nice! Link to comment Share on other sites More sharing options...
rubecula Posted April 15, 2016 Share Posted April 15, 2016 Have you got a light polution filter in the imaging train? I've got a modified 550D and the images were very red until I installed an IDAS D1 filter. It reduces the red in the general image without reducing the red from astro sources. Link to comment Share on other sites More sharing options...
wimvb Posted April 16, 2016 Share Posted April 16, 2016 Very nice result. I believe to still see a weak pattern in your noise: almost horizontal streaks. More agressive dithering should remove this. At least 12 pixels (but preferably more) on the camera chip is generally recommended. Link to comment Share on other sites More sharing options...
Nigel G Posted April 16, 2016 Share Posted April 16, 2016 Hi Steve. May I download your image to run through a program I have, I think it might be able to find a little more colour in there. Nigel. 1 Link to comment Share on other sites More sharing options...
Herzy Posted April 16, 2016 Share Posted April 16, 2016 I say you just fiddle about with the RGB channels until it looks normal. Your right it is very red-tinted. Link to comment Share on other sites More sharing options...
steviemac500 Posted April 16, 2016 Author Share Posted April 16, 2016 Nigel, yes of course. Wimvb, how do I increase the dithering in APT? Herzy, in DSS or in PS? Link to comment Share on other sites More sharing options...
Nigel G Posted April 16, 2016 Share Posted April 16, 2016 I managed to squeeze a tiny bit of colour but not much, with photoshop express . Probably by darkening the back ground and a little noise reduction. To much colour enhancement started turning the stars a false colour. It's difficult processing pictures but great fun trying, I'm very new to astrophotography but very keen to learn, thanks for letting me use your great image. Nige. Link to comment Share on other sites More sharing options...
wimvb Posted April 16, 2016 Share Posted April 16, 2016 58 minutes ago, steviemac500 said: Nigel, yes of course. Wimvb, how do I increase the dithering in APT? Herzy, in DSS or in PS? Unfortunately, I can't help you with APT settings, since I don't use this software. I do my dithering by calculation on the Synscan, aiming for 15+ pixels. Link to comment Share on other sites More sharing options...
Nigel G Posted April 16, 2016 Share Posted April 16, 2016 Probably adjust rgb channels in PS after stack. DSS Is very difficult to adjust rgb after stacking, best results come from post stacking program's Good luck and enjoy. Link to comment Share on other sites More sharing options...
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