Thanks for the ideas. The most recent shots were done on a tripod with 12 second delay to eliminate shutterfinger-induced vibration. For now I shoot Raw+jpeg, any pp is done to raw images. In the trash bin are several images where I experimented with longer exposure and/or higher ISO. My desire for experimentation diminished as the temperature went down; it was 10 deg. plus a light breeze by the time I threw in the (frozen) towel. Actually the only things that froze were my thumb and index finger, the rest of my body was well-layered up.

Planning for the next full moon....
Mark