Finally got around to processing this material. This nebula was filmed over many nights from October 2021 to early January 2022 when I hadn't switched to an off-axis guide yet, and the guider's fixture was flimsy not allowing really long subs. Therefore, I shot mainly with 3-minute sub-exposures even for narrowbands. Fixed that in January and made few 10 min oxygen frames then.
The image is color balanced bi-color composition of Ha+OIII+OIII with RGB stars. Was taken during 31 night between 6.10.2021 and 3.01.2022, on my balcony in Brisbane (Bortle 7 city sky)
Telescope is TAL-250K (Klevtsov's system 10" reflector + 0.7x special NPZ reducer/flattner Mk2)
Mount EQ6R, camera ZWO ASI2600MM Pro, guider SVBony 60mm + ZWO ASI290MM, filters ZWO RGB and Antlia 3nm Ha+OIII
Non cropped full resolution here:
https://www.astrobin.com/1js2lz/
Total accumulation time ~50h (H-alpha 31h, OIII 17h, RGB 1h26m) with sub-exposures:
Ha: 615x3 min
OIII: 287x3 min + 15x10 min
R: 15x2 min
G: 14x2 min
B: 14x2 min