Canon 20D (unmodified), Takahashi FS102; FS102 focal reducer; 6 - 10 minute exposures at ISO800 - aligned/combined in Registar; Digital Development as well as image acquisition in ImagesPlus. Used Hap Griffin's parallel cable for the series of unattended bulb exposures. Guided using an SBIG ST-402XME thru an Orion ST80 piggybacked, all on a Celestron CI700 mount.