Canon Eos 6D mk1 with Canon EF 14MM F/2.8L II USM Ultra Wide Angle Lens.
Very slight increase in exposure.
This photo is taken from my house which faces north on the shore of Loch Snizort, Skeabost Bridge, Isle of Skye. I am very fortunate in that I see a number of aurora from here. Most of the time I lift my head off the pillow to see whether it is worth getting up for. This one was. Taken in my pyjamas!