I think SM just exposed maybe the principle aspect (in a pratical sense) for a good shot: three lamps and the right angles between the camera and the model.StygianMax said:(2) I actually use 3 halogen light "heads". All are over 2' away. I lower the shutter speed (i.e. leave shutter open) for a longer period of time to allow more light in. One of my lights is a floor lamp with one fixed light facing upwards and another on a "gooseneck" arm. My second light is also a halogen floor-lamp on a double-joint arm.
The best would be a light tent of course, but if you have three lights correctly positioned you can get some very good shots.