Shooting For The Edit
It's all to easy, to get caught up in beautiful cinematography, and forget to capture the transitions, establishing shots and other essential bits that make up the grammar of film.
Top Tips For Composing Shots For Broadcast and Online Video
The variables include how close you are to your subject, how zoomed in you are to the subject, how much of the picture is in focus, what else you include in your shot and where you position your subject within the shot.