This is M101, perhaps one of the best known spiral galaxies along with M31 and M81. Shot through the ED80, this image, taken over two nights, was made up from 28 x 5min luminance exposures through a CLS filter, and 7 x 5min each of R, G and B.
The image below was put together from 35 x 5 min luminance exposures, 19 x 2 min R, G and B exposures binned 2×2, and 12 x 5 min H alpha exposures; R and Ha were blended together to form the red layer before creating the colour image.
Nevertheless, it should be a bit quicker and easier next time!
I’ve been promising myself I’d do it for ages, and have now finally done it – bought a “proper” CCD for taking pictures. I now have an Atik 314L+, and last night had the first opportunity of trying it out. These pictures are both simply monochrome images taken without a filter through the ED80, but I do have the filter wheel and LRGB filters, along with a hydrogen alpha filter to try out once I get the power supplies sorted out!