Thanks guys
gohan1842,
to make a lightbulb, make the lightbulb the on the bulb part add Blnn > color white > add some transparency > then some incanescence, then under special effects add a little glow. Then make a point light a place it inside the lightbulb and click on ray trace shadows, and that the way I make a lightbulb
Peltra,
here a rander without the depth of field.