Thank you all in advance for response to this post. This weekend I accidentally forgot to change the ISO on my camera from 100 to 400 while shooting with Fuji Pro 400h and I was over exposing by two stops. One, is there anything I need to tell the lab and two, is there a possibility that the images will be blown out. I just started shooting film and I'm curious to know if any one has experienced this and can shed some light on this? From what I've been reading it seems as if Fuji pro 400h had a descent exposure range.