I shot the roll of film on iso 100 even though I knew it was an iso 100. but i thought it didnt matter for shooting with flashes. But i forgot to adjust my flashes to iso 800, So at the end of the run I over exposed the film by 4 stops. I thought I was doomed. But the guy at the lab helped me out and pulled the film from iso 800-> 100. And the results are stunning such incredible colors, it almost looks like slide film. the only downside is the loss of skintones.