November 14th 2010... I was heading deep into the woods for another nightly adventure… I came down to a river running out of a small frozen lake. My headlamp was living its own life, turning on and off every other second. I must have looked like a walking disco...
I managed to get out in the middle of the river to these wonderful rocks. I knew immediately what I wanted. The rocks were frosted so brilliantly. I knew that if i could pull this off, i would have a shot that could be hard to top. The aurora was dancing vividly across the sky in the exact right direction.
At the time i was using the old Canon 5D paired with an EF 17-40mm f/4L lens. I set up my composition and focused on infinity. I set the aperture wide open, ISO was set to 800 and I exposed in bulb mode since this would be a longer exposure. Time for the "magic cloth"! I pulled out a yellow kitchen cloth from my pack and after I had done some serious compositional thinking, I held the cloth over the sky and opened the shutter. After a little over 100 seconds, I removed the cloth and let the sky expose for about another 20 seconds. This made the reflections and the foreground stand out in a really appealing way.
When I got home I started the processing. The RAW file looked great. Noise was almost unnoticeable. Then followed the obligatory and crucial white balance adjustment, a little Levels… and then some dodging and burning. All that was done in a few minutes. - Arild Heitmann
Equipment and settings: Canon EOS 5D, Canon EF 17-40mm f/4L zoom lens, shutter release, Benro tripod, yellow kitchen cloth - Bulb mode, 126-second exposure for the whole scene with only 20 seconds of exposure for the sky at f/4, ISO 800