Sunday, December 21, 2008

DIVIDING THE FRAME

Any image, of any kind, automatically creates
a division of the picture frame. Something
like a prominent horizon line does this very
obviously, but even a small object against a bland
background (a point, in other words) makes an
implied division. Look at any of the pictures in
this book which comprise a single small subject—
shifting the position of the subject changes the
areas into which the frame is divided.
There are, naturally, an infinite number of
possible divisions, but the most interesting ones
are those that bear a definable relationship to
each other. Division is essentially a matter of
proportion, and this has preoccupied artists
in different periods of history. During the
Renaissance, in particular, considerable attention
was given to dividing the picture frame by
geometry. This has interesting implications
for photography, for while a painter creates
the structure of a picture from nothing, a
photographer usually has little such opportunity,
so much less reason to worry about exact
proportions. Nevertheless, different proportions
evoke certain responses in the viewer, whether
they were calculated exactly or not.
During the Renaissance, a number of painters
realized that proportions of division based on
simple numbers (like 1:1, 2:1, or 3:2) produced an
essentially static division. By contrast, a dynamic
division could be made by constructing more
interesting ratios. The Golden Section, which
was known to the Greeks, is the best known
“harmonious” division. As outlined below, the
Golden Section is based on pure geometry, and
photographers almost never have either the need
or the opportunity to construct it. Its importance
lies in the fact that all the areas are integrally
related; the ratio of the small section to the large
one is the same as that of the large section to the
complete frame. They are tied together, hence the
idea that they give a sense of harmony.
The logic of this may not seem completely
obvious at first, but it underlies more than just
the subdivision of a picture frame. The argument
is that there are objective physical principles
that underlie harmony. In this case, they are
geometric, and while we may not be aware of
them in operation, they still produce a predictable
effect. The subdivision of a standard 3:2 frame
according to the Golden Section is shown
opposite. Precision is not of major importance,
as the photographs show.
The Golden Section is not the only way of
making a harmonious division. It is not even the
only method in which the ratios are integrally
related. Another basis, also from the Renaissance,
is the Fibonacci series—a sequence of numbers
in which each is the sum of the previous two:
1, 2, 3, 5, 8, 13, and so on. In yet another method,
the frame is subdivided according to the ratio of
its own sides. There is, indeed, a massive variety
of subdivisions that obey some internal principle,
and they all have the potential to make workable
and interesting images.
This is all very well for a painter or illustrator,
but how can photography make sensible use of
it? Certainly, no-one is going to use a calculator
to plan the division of a photograph. Intuitive
composition is the only practical approach for
the majority of photographs. The most useful
approach to dividing a frame into areas is to
prime your eye by becoming familiar with the
nuances of harmony in different proportions.
If you know them well, intuitive composition
will naturally become more finely tuned. As
photographers, we may be able to ignore the
geometry, but we can not ignore the fact that
these proportions are fundamentally satisfying.
Notice also that, by dividing the frame in both
directions, an intersection is produced, and this
makes a generally satisfying location for a point,
or any other focus of attention.

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