What focal length lens is suitable for shooting aurora in Iceland?

Quan Huafu SLR fuselage is the best, such as Nikon D8 10, D800 or above, Canon 5D MARK3 or above. It is best to bring a polarizer CPL, which is convenient for shooting underwater objects and increasing saturation during the day. The other is gradient grey mirror, which can facilitate the shooting of sunrise and sunset. It's best to shoot a grey mirror with a drop of 10. You can shoot a slightly brighter running water into a fog. You can consult Mr. Tian Yun, a professional photographer, and will soon lead the China Art Global Photography Tour Group to Iceland for a 13-day in-depth creative group. If you are interested, you can pay attention to their photography group and itinerary.