i took a roll of 3500 ISO black and white film to france. i had no idea what i was doing. and i still wouldn't know if you asked me. but without this film, i wouldn't have been able to take a picture of the eiffel tower at night, or inside cathedrals lit only by candlelight, or through secret darkened rooms in the louvre.
this is what it looks like to take pictures in the dark in france.