Testing the little Borg, unguided on a Star Adventurer with a very quick polar alignment
ASI1600mm Pro camera and Chroma 3nm Ha filter. 922 x 30s and 90 x 2s subs over two nights from light-polluted St Lucia. I might have gone a little longer than 30s if I had a better polar alignment but even at 30 seconds the core of M42 was blown out. Processed using a beta version of PixInsight 1.8.6.
Big version here:
https://www.astrobin.com/377112/0/
Cheers,
Rick.