Cygnus Nebulae in Ha

19:31 9/9/2007 UTC

Sky was pretty nice with good transparency, but some lonely clouds floated here and there making serious imaging session a waste of time. So, I tried something new. I mounted my H-alpha filter in front of Canon EF 50mm lens and pointed it towards Cygnus. It is really amazing how much nebulosity there is! North-America, Butterfly, Veil and even Crescent nebulae are nicely visible in this image and all this in very short exposure. I really need to focus on this for a while to get a real imaging going.

Camera: Modified Canon EOS 350D | Telescope: Canon EF 50mm f1.8 objective | Mount: Orion Skyview Pro, Boxdoerfer PowerFlex MTS-3SLP drive controller | Filters: Astronomik H-alpha 13nm 2" | Exposure: Ha: 4x180s (12m) ISO800 f2.8, 5 darks, 8 flats; | Software: IRIS, GIMP | Location: 60°31'N 26°52'E (Koivula/Kotka,FI)