The sample pictures were taken at various ISO settings ranging from ISO 100/21° to ISO 3200/36°, using a variety of Canon L lenses.
The first sample shot of a Aurora was taken with a EF35mm F1.4Llens @ ISO 800 f2.8 and 8 full second.
A 100% crop of the top picture, those are the stars; NOT dead pixels! Duh!
