hello greg.. a very cool composition for this moon, the surface have a great contrast so perfect and so detailled, the phase of the moon a real effect it is the part of the "mounts" that of the "seas" are truly perfect, I believe that the time of exposure has been at least 1/250 for 100iso.. have composed and realized a nice frame, you have the part in light that the part in shadow perfect! very well done my best wishes roby