From T71 at Deep Sky Chile last night.

Epsilon 180ED (500 mm, f/2.8), ASI2600MM Pro at -5°C, gain 100
Ha 5 x 90 s, OIII 5 x 90 s

Calibrated with bias, dark and flats, aligned and median stacked in Python, sky gradient taken out, asinh stretch, HOO with the stars kept neutral.