I just started my job today at a photography studio as an assistant, and have a question... When you take a meter reading (I'm pretty much working as an assistant during "Senior Picture" taking season) and I have the ISO set for 100 since its inside and also set at 125....they check, and "dump the lights" until they get a reading of either 5.6/9 or 8/0...is the meter reading telling them what aperture to set the camera at in order to take the picture? Ok wait, maybe this makes more sense for others....when I say "5.6/9" and they go ahead and take the picture, are they setting the lens at 5.6? The first day was looooooooong and I learned a lot, and they are going to be training me to be a photographer in December and I feel like its the stupidest question ever! Thanks Guys!!!!