I took this one a while ago. Its a bicolour image (Ha and O111) using the CDK17 at F4.5 and 694 camera.
This object has always fascinated me but its rather dim so I was happy the F4.5 really collected the photons here:
http://upload.pbase.com/gregbradley/...56159484/large regular size
http://upload.pbase.com/gregbradley/...59484/original large size
Greg.