On our recent trip to Iceland, we went there in October to get the opportunity to watch the aurora borealis. We’ve been there for one week and most of the time, either the sky was cloudy or the kp index was too low. In the end, we were lucky and hat some partially clear skies close to Snæfellsjökull in Arnarstapi early in the morning around 2pm. The most interesting think for me was that the aurora borealis did not look that greenish than it does on the photos. We had a kp index between 4 -5 and half moon. So it did look more greyish when we watched it. For me, these camera settings worked well on the Nikon D810: Exposure: 25 sek, f=2.8, ISO 400. Focus set to infinity, all manual on the 14-24.