the article only tangentially touches on depth of field which adds very much to a professionally looking webcam video, when using a DSLR or other digicam with a

the article only tangentially touches on depth of field which adds very much to a professionally looking webcam video, when using a DSLR or other digicam with a decent lens. You have the blur in the background so can still see the person in their surrounding but not so much that you can see all the cruft lying around. Focus is on the face and it's much better than any software solution that blows up the computer fan.