My $.02- If you leave the fluorescent lights on, do NOT use your shutter. Turn off the shutter completely or you'll experience rolling colors. Also, I used to work with a reporter who would do LOOOOOOONG interviews. Not sit down style, just "Oh, let's grab this guy" type of SOT and then ask 100 questions. That's OK as long as they logged the tape, but to break this reporter of this habit, I made him/her use a stick mic at arms length. I'd make both of us stand at least 3-4 feet from the subject(to get a better DOF shot((wink, wink, nudge, nudge)). I'm on sticks, so I really didn't care how long winded they got. Interviews got to the point very quickly when this person had to hold their arm outstretched for a few minutes. Try it, take something simple, like a canned beverage. See how long you can hold it, straight out, at arm's length. Those of us who have taken CC classes know exactly what this is like!