I did some tests with no moonlight over the weekend. I need to finish off the rolls to get the film developed. On my DSLR, just 45 minutes was enough to get detail in the landscape at ISO 400 at f/5.6. For the film I tested Velvia 100 and Provia 100, About 3.75 hours at 5.6 and also at f11. More testing will have to be done, particularly with moonlight levels.