GazAstro Posted February 26, 2022 Share Posted February 26, 2022 Hi all, not posted for a while, kind of lost my mojo. After stripping / regressing my AZ-GTi and doing some cable tidying I needed to test it of course. This is possibly my longest integration time so far ( I tend to get impatient 🙂 ) From memory, 60 mins Ha, 87 Oiii and 81 Sii. Processed as SHO. No calibration frames. Also my first attempt at dithering and first time flipping (manually) Pleasantly surprised that DSS took this in its stride when stacking. Capture - APT Stacked - DSS Stretch / levels / curves PS6 Final tweaks - lightroom mobile. Thanks for looking         7 Quote Link to comment Share on other sites More sharing options...
GazAstro Posted March 2, 2022 Author Share Posted March 2, 2022 (edited) Thanks for the likes. What are your opinions on dithering / darks ? Should I use both ? I had to stretch the image to within an inch of it's life (Bortle 7/8) but still seems noisy. More integration time I guess. Edited March 2, 2022 by GazAstro typo Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted March 2, 2022 Share Posted March 2, 2022 Yes more time needed. I dither between every sub and use darks/flats for calibration. I've noticed on my particular OSC it also requires bias although not required for either of my mono cameras. On my dither I have it move 2 pixels then wait about 5 to 10 seconds for everything to settle. 1 Quote Link to comment Share on other sites More sharing options...
GazAstro Posted March 2, 2022 Author Share Posted March 2, 2022 Cheers Terry, I really need to learn not to rush things ! I've just reprocessed with darks, restacked, fiddled in PS6 etc ... Much smoother (on my monitor anyway) but forgot to exclude the poor quality frames 🙂 So I'ts better in one way but worse in detail 😞 1 Quote Link to comment Share on other sites More sharing options...
GazAstro Posted March 2, 2022 Author Share Posted March 2, 2022 So, at the risk of becoming annoying, tried a new approach ... Took my time - deleted the trailed star subs, deleted the misty poor transparency subs, stacked again in DSS - kept best 80%, then tried something new (to me) processed in Siril 🙂 finished with cropping and a slight colour balance (adjustments - selective colour) in Photoshop. Much happier with this now. 2 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted March 3, 2022 Share Posted March 3, 2022 Yes I like the results you have got with the last image Gaz. It looks very smooth. 1 Quote Link to comment Share on other sites More sharing options...
GazAstro Posted March 3, 2022 Author Share Posted March 3, 2022 Cheers Terry, It's a long journey but fun learning ! But not as long as the 6,400 light-years that the photons took to reach my sensor 🙂  Quote Link to comment Share on other sites More sharing options...
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