Enjoyed a couple nights at Assateague National Seashore imaging late winter constellations over the Atlantic Ocean. This location in Maryland is one of the darkest close to my home base in Philly. SQM-L meter read between 20.9 and 21.0, though it seems darker along the south-east horizons. The northern horizions definitely have some sky glow still. My 12x50 Oberwerk binos looked better than observing through my 8" dob at home! lol...

I'm still experimenting with this camera's HCG + High Fullwell Mode settings which seem to increase read noise only slightly from ~1.4e- to ~1.7e- per pixel while doubling the full well capacity (by halving the gain e/ADU). I don't have an easy way to compare all the modes however, and have a hunch that while this combination likely does increase effective dynamic range it may come at the cost of linearity. I haven't been able to actually saturate any pixels (65k+) according to N.I.N.A. in this mode even imaging bright stars (like Alnitak which I imaged in LRGB) - this seems odd... So I cranked the settings up to 10 minute exposures just for fun to try something different than my usual short subs.

I'm very happy with the depth and details that came out! I'd like to find a tool to clean up the shot/read noise a little better as my Siril processed images always seem grainier than others' PixInsight RC Astro AI filtered images even with similar amounts of integration.

For the stars on this one I tried a modified PixelMath from Sascha from Switzerland's "View into Space" YT channel: https://www.youtube.com/watch?v=XlnfP4MMUAg
    R = Ha
    G = 0.4 * Ha + 0.6 * Oiii
    B = Oiii
Then I use Siril's PCC (Photo-metric Color Correction) and extract the stars with StarNet++. They have decent color and less funky magenta halos. I then re-process the nebula with whatever PixelMath and such that I want and recombine the "RGB"ish PCC'd starmask at the end.

Thanks for looking and clear skies!
-John "ubergarm"