Here’s an example of a studio created head-shot, – useful for business cards, websites etc. This one features Tim!
It’s done using two studio lights, the key-light is placed to the right had side of the subject, reading f/8 and a fill-light at the back of the studio, reading f/4. The camera settings are f5.6 at 1/60th sec, on ISO100.
Normally this would be shot against a plain grey or dark backdrop, but this shot was taken against a green chromakey backdrop, then a digital backdrop substituted for the green.