I'm intersted in starting to shoot nighttime scenes around my hometown. I'm going to shoot with TMY 400 to avoid major reciprocity failure.

I don't understand how to meter for night time scenes. Everything I've read seems to indicate "winging" it for exporsure. I'm a diehard zone system person. I understand to meter for the shadows, but at night everything is a shadow!

And what about lights? Street lights and biulding lights... I can use semi stand in Pyrocat HD to tame those, but what is a good approach to metering at night?