I am fairly new to filming, but feel I have a creative eye for what I want. I am confused on one thing: I want to film a person addressing the camera and have them in a medium shot during some of the talking and then close up during some of the more important talking. Do I do this during the shoot or do I just zoom in the film during post production? I would prefer to do this during post production, since it would be easier, and I don't have to confuse the actor with different cuts, but I worry if I do this during the shoot, the zoom will be different every time since I have no way of judging each zoom, but then, I worry that if I do this during post production, the film will loose quality when I pull in. Not sure how the pros do this. Thanks!