It seems that when I apply z depth of field that my render times are vastly increased. #1 Is this normal and #2 is there a way to work around this. I'm moving into a scene with a lot of moving firefly lights and wanted to use z depth to create the illusion of passing by them. I already have the path of each light ready.
Thank you Gilles for the tip. Yes I am talking about depth of field. I currently don't have a copy of After effects, but I guess I could let the computer run all night. I'm estimating 5 to 8 hours for 15 sec. at HD Quality.