19991007: M57 :Ring Nebula, LCMY Color (8x2 : 5.4 : 4.1 : 3 minutes respectively), taken at Mid-Atlantic Star Party Oct 1999.  SBIG ST-8 with 9 micron pixels, and C14 at f5.5 (Optec focal reducer).   Registration and combine with MaxIM DL.  Processing besides Dark and Flat Field: color balance adjusted with MaxIM DL because it didn't look at all well before -- still not thrilled.   Poor seeing or focus problems between color frames -- not sure which  -- led to smeared color on some stars.   Will have to do again someday.