Hi all,
taken from suburbs with lot of light pollution and noticeable turbulence (and gusts). The accuracy is disappointing but this is due to bad conditions. Newton 150mm f/4. I'm not quite sure yet of the right distance between the camera and the coma corrector and some aberration remains visible. The colors are not perfectly superimposed (my fault; the image contains 5 layers to be slightly rotated due to imprecise polar alignment). Note that the 178 has very tiny photosites, theoretically not fitted to deep-sky imaging; nevertheless I'm impressed by the very limited noise and the possibility to image such a pale nebula with my favourite lunar camera! 2h30mn total exposure, full resolution.
Nicolas
