Horsehead and the Flame (Ha:OIII:OIII)

17:39 16/1/2007 UTC

Horsehead is visible from my backyard about 2h, which doesn't give much time to do very long exposured. This wasn't quite a succesful photo, since I had lost the routine in imaging during long cloudy period. New equipment seems to have generated some very nasty bright reflections in the image. I suspect they come from clear aluminium adaptor ring which connects the reducer to the Filter Drawer System. Reflections spoiled large parts from the image, so I had to crop and save small part from the center. OIII didn't give much more than whiteish stars.

Camera: Modified Canon EOS 350D | Telescope: Skywatcher ED80 Pro 80mm f7.5 refractor, William Optics 0.8x focal reducer | Mount: Orion Skyview Pro, Boxdoerfer PowerFlex MTS-3SLP drive controller | Filters: Astronomik H-alpha 13nm 2", Astronomik OIII 13nm 2" | Guiding: , Orion ShortTube 80mm f5 refractor, QCGuider, Teleskop-Service 1.5x Barlow, Phillips ToUCam Pro II webcam | Exposure: 9x300s (45m) ISO800 f6 (Ha), 10x300s (50m) ISO800 f6 (OIII), 12 darks, 10 flats, bias. Ha:OIII:OIII Mapping | Software: IRIS, GIMP | Location: 60°31'N 26°52'E (Koivula/Kotka,FI)