I do a lot of amateur astrophotography too (https://www.instagram.com/dheeranet/), mainly with the objective of trying to show what things "would look like" if these deep space objects were much brighter; I maintain compositional and visual accuracy; all of these things could have theoretically been shot as-is as a single image if the objects were brighter.
> It's not uncommon to combine the LRGB data with e.g. H-alpha data.
Yeah I do this too. Typically I do HOO to maintain as close to spectral accuracy as possible. I don't have an S filter.
It is, by the way, possible to get DSOs shot as a single image, it's tricky. See the 3rd image in this series:
Is that a single exposure? How did you prevent the foreground from blowing out on that, were you in a super dark location?
Unfortunately I'm in a Bortle 5 to 6 area so I'd need quite a bit of integration time to get a decent SnR. There aren't really any proper dark sites in western Europe.
Yeah that would do it. I'm in the western US and there are lots of Bortle 2 sites I can access in a weekend, and Bortle 1 sites I can access on a long weekend.
There's even a Bortle 3 site I can get to after work just 2 hours from San Jose (Pinnacles National Park) which is exactly where I took that seagull nebula picture.
> It's not uncommon to combine the LRGB data with e.g. H-alpha data.
Yeah I do this too. Typically I do HOO to maintain as close to spectral accuracy as possible. I don't have an S filter.
It is, by the way, possible to get DSOs shot as a single image, it's tricky. See the 3rd image in this series:
https://www.instagram.com/p/CKXdL1YndQi/?img_index=3
I want to try to fine tune a diffusion model to make it possible to actually shoot these single shot with good fidelity.