Light — Science & Magic, 6th Edition

METAL 135

If you examine the angles, you see that a light under the camera can

bounce light from the glossy plastic to the metal. at light strikes the metal

at such an angle that it then reects back to the camera to record on lm.

e metal is lit, and the bright metal in Figure 6.29 proves it.

As far as the metal can tell, it is being lit by the plastic surface in the

scene. However, the camera cannot see that light is reecting from the black

plastic; the family of angles dened by the plastic makes it impossible.

Like the earlier glass surface, the acrylic surface will reect the overhead

light source. Once again, we used a polarizing lter ...