On October the 23th I got pretty good seeing for testing the new camera generation with Sony ICX618. It was really amazing to see the better sensitivity of the new chip. The first image is made from true RGB data. In the second image I have mixed up the luminance channel with 25% of a RG645 filter. It shows a detailed view on the GRF an the colorful clouds meandering behind.
10-23-2011, Observatory Diedorf, Newton 18" f/4.5, DMK 21AU618.AS, Astronomik RGB
Karl Thurner, Germany