Aurora Borealis Aurora Borealis 13.11.2004


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20:59 UT, green-blue glow in a hole in the clouds

Imaged with a Canon EOS 20D and Peleng Fish-Eye lens. Exposure time was 15 seconds at f/3.5. Camera setting were manual exposure, 400ISO, daylight white balance. Image enhancements used were manual dark frame subtraction, curves, unsharp masking, brightness and contrast. Image cropped and made smaller for the Web.


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All material Copyright © Jorma Koski, Anno Mundi 2004