M17 from POR, 14 July 2007 at 22:20 UTC. Apochromat 200/1600, modified Canon EOS 5D, 8x 20s at ISO...
M17
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par Emmanuel Jehin | 9 août 2007 | AstroPhotos
M17 from POR, 14 July 2007 at 22:20 UTC. Apochromat 200/1600, modified Canon EOS 5D, 8x 20s at ISO...