Sup /p/,So, I was fortunate enough to get an Olympus OM-1 at a pawn shop for only $45. And it's in excellent shape (Not as nice as the one pictured of course).I've wanted to get into film for a while, and while I know most of the basics, I still have a long ways to go.I have it loaded with 1600 ISO film right now because I've been taking pictures mostly and night and at sports games, but I have yet to fully understand what differences each type of film number presents. Could someone explain?