Hi Ben
Great shots there mate. There is a sort of a "gold standard" when imaging an aurora in my opinion.
30 second subs @ iso 3200 between f/stop of 2.8 and 3.5
I use a nice Samyang 14mm 2.8 wide angle lens.
Paul
Thanks for the comments, not sure how close you are to coast in SA whereas I live on the surf coast with clear views to celestrial south
Tnx Larry.
Tnx Mike, it was a real suprise this one! No Solar flare noted or recorded, out of the blue this one..
Regards Paul.