Thank you for the comments really appreciated! The Astrotrac is a GREAT piece of equipment for astrophotography without a telescope. Not needing to carry a notebook or a guiding setup is a pleasure (to me).
Madweasel wrote in post #15478184
Fantastic result Luigis, very impressive. I wonder how much better the 60Da is at such work than the conventional bodies?
The 60Da is more sensitive to the red and near-IR part of the spectrum so it gets more light from red and near-red nebulas.
Steve M wrote in post #15482755
Luigis..Beautiful shot!! Could you give some hints and/or links as to the postprocessing?
I have a strange worflow. I don't stack RAWs. I develop my RAW files using DXO optics so I setup white balance, exposure, contrast, saturation, noise reduction, etc and then batch convert all the RAWs to 16 bit TIFFs.
Then I stack-align the TIFFs (with DeepSkyStacker or similar).
And I process the final stacked shot with Photoshop.
I'm not using dark frames, flats, etc.
archer1960 wrote in post #15482957
Could you post one of your subs, so we can see how much light were getting in each one?
Here's a single sub without any processing at all, just RAW=>JPG conversion with all defaults in DXO.
Stacking several shots reduces the noise and then you can stretch the histogram without destroying the information.