I am going to be shooting indoors without flash. I will use my 50/1.4 at 1.4 or 1.8. I am shooting 800 speed film. If I set the camera to aperture priority, the shutter speed will fall to low for me. I planned on shooting in manual mode with a shutter speed of around 60. When I look in the viewfinder, the exposure meter shows that I need correction. Since I don't want to change shutter speed or aperture, the only way for it to center is to run the ISO up. Way up. What will the results look like. Is that what I should be doing? Or should I drop it to ISO 200 or lower and let the developer deal with it? Perhaps I should be doing something else? I know with my D70, I need to run the ISO up to pick up shutter speed. I also pick up noise. I am just not sure what happens with film. Thank you in advance.