Hey guys. So my ETRSi just arrived today, and I've already dropped the focusing screen on the floor after taking the prism off (and now it's all dusty and finger printy). But anyways, what I wanted to get an idea of was what kind of film I should buy for it. I'm going to be shooting with it down in Arizona so it will be quite bright most of the time. And I have 3 backs. One is for black and white, the other is for slide film, and the other is for negative film. And this is where I get a little lost. What is the best slide film that I should use? Same for B&W, what is the best, and also for negative film. Thanks a lot.