I was shooting some night shots last night with my EP1 and noticed that the long exposure NR wasn't kicking in even though a few of the shots were in excess of 5 or 6 seconds. I went into the (ugly, complicated, jumbled) menu to look for a setting but the only one regarding noise seems to be the "Noise Filter" setting, which I've set to OFF as I don't want regular jpeg NR. Does this setting also turn off the long exposure NR or was I perhaps just under the threshhold for triggering it? I was also shooting at ISO 100 if that matters. I will check the manual as well, just thought I'd pick the brains of any experienced EP1 users.