M57, Ring nebula
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2012 Aug 13, Asikkala Canon 550D GSO/TS250 Newtonian at f/4. 60 x 15 s at ISO3200 Processed with Iris, levels with Photoshop Elements. Image width is about 5'.
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2004 Sep 04, Asikkala Canon 300D M603 at f/6.4 32 x 15 s at ISO800 Processed with Iris. Image width is about 8'.
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