I made the comment earlier that seeing is *really* important when it comes to high-res deep sky imaging.
I've pulled the colour version posted earlier at the URL below and replaced it with the new B&W version (for now
)
http://www.atscope.com.au/BRO/gallery37.html
The res is not too shabby and shows features I've never really noticed before: shock waves coming off Eta itself.
Cheers