Skywatcher 250PDS on a Skywatcher AZ-EQ6GT mount with unmodded Nikon D5200 DSLR.
Image is a stack of 65 x 180sec lights with associated darks, bias and flat frames. Stacked in DSS and processed in PI.
This is the first time I have had a proper go at capturing the Horsehead nebula. I had tried previously with very poor results. I am really pleased with this image as I was not expecting to get as much detail as I did from an unmodded DSLR.