A bare tube encased in a frosted dome and facing upwards was used for this image. Bare tube (bulb) strobes act much like the theoretical point source, radiating light in all directions with equal intensity. The shadow edges of bare-bulb sources are the most distinct possible. The shadows in this example show that extremely sharp shadow edge, but, at the same time, the shadows are also very light in tone. The high degree of fill lighting in this example's shadows is a result of the vast amount of light the bare-tube has thrown about the room. In essence, the room has become one big light tent. Many wedding photographers prize the bare-bulb portable flash for its ability to deliver a crisp direct light along with generous bounce lighting to lighten shadows and the surroundings.