I am a college senior enrolled in my beginning photojournalism class. I am shooting a photo essay about a burlesque troupe (so they perform mostly in dark bars and the like). Until now I have only worked with outdoor light so I have always used the light meter in my camera. Tonight is my first night to shoot one of the shows, and I need to use a flash. I don't have an external light meter, and I don't know how to correlate the F-stop with the external flash, since my light meter doesn't read it. I tried figuring it out from my textbook, but it's too confusing, and I don't have manuals for the flash or camera because they belong to a friend who doesn't know how to use them, and the show is in a few hours. I don't want to waste a bunch of film and come up with nothing useful, so if anyone can help shed some light on this (oh, whoops...sorry for the pun) I would greatly appreciate it!!