Aurora with Red SAR Arc and Blobs #2 (Oct 11, 2021)
The G2 auroral storm of October 11/12, 2021 looking south to a dim red arc (a SAR arc likely) that appeared for a few minutes associated with green blobs. This was from home in southern Alberta. The green areas were visible to the unaided eye but the red SAR arc was not; only the camera picked it up.
This is with the TT Artisan circular 7.5mm full-frame fish-eye lens at f/2, on the Canon R6 at ISO 2000 for 13 seconds.