Much of what follows is based on the family of angles that cause direct
reection. We introduced this family in Chapter 3. We have used the
concept in each succeeding chapter, but in none of them was it as vital as it
becomes when dealing with metal.
FLAT METAL
Brightly polished metal acts like a mirror: it reects whatever is around it.
is mirror-like quality means that, when we photograph metal, we do not
make a picture of just the metal itself. We also make a picture of its sur-
roundings, or environment, as it is reected in the metal. at means that
we must prepare a suitable environment before we photograph the metal.
W
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