I'm using a green screen setup with twofluorescent(5.5K) soft-boxes lighting a human subject and another two lighting the screen. I'm using a Sony C150X Handycam on a tripod with daylight white balance settings.
The screen is working pretty well but I'm having trouble achieving the desired effect with the subject. When I zoom in close to the subject's face, he looks very natural, however when zoomed out further, he looks washed out and too bright.
Here is a picture demonstrating the different the different effects at different zoom levels: http://i.imgur.com/3WQeM.png
Why does this happen and how can I make the subject look like he does on the left while getting more of his body in the shot.