Tuesday, November 13, 2012

46th Week - auroras in Lofted

In the week 22 ranged Manfred Kiau up an Adwa on Sun. "The sun is something going on," it said. Now he has, Ulrich Teschke, Frank Gasparini and Elisabeth Kollner taken a Northern Lights excursion. In the period from 08 to 21.10.2012, the trip went to the Lofted Islands. This archipelago lies in the far north of the Norwegian Atlantic coast, beyond the 68th Latitude. The aim of the observer group was there to document the effects of solar activity in the terrestrial atmosphere: auroras as photogenic, best with reflections in the water.

The trip took place in excellent weather conditions - not really typical for this time of year. The observed aurora events were sometimes quite violently. Photos of the brought the current Academy of Sciences was chosen unanimously for the interesting scenery. The reflections in the lake in front of the towering mountains with the clouds are impressive! Images were taken with a Canon Eos 5D Mark II with a Canon EF 24-70 1:2.8 LUSM. With an effective focal length of 24 mm and f/2.8 25s was exposed at ISO 1250th the dynamic conditions of the northern lights do not allow for much longer exposure times, because otherwise blurring may occur. So had the open orifice may be selected, in addition, the relatively high sensitivity, in which the noise is indeed noticeably, but still well tolerated.

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