I went straight from a Canon EOS 1000d DSLR to
a QHY-9 mono and the difference is amazing.
All with an 8" f6 Newt.
DSLR pic of the Hamburger galaxy:
https://www.flickr.com/photos/247194...in/photostream
QHY-9 mono pic of the same target:
https://www.flickr.com/photos/247194...n/photostream/
Close up crop with QHY-9
https://www.flickr.com/photos/247194...n/photostream/