"I photograph to find out what something will look like photographed."
Taken out of context, Winogrand's statement may appear flip and cynical. I think, however, that he meant it quite sincerely. He actually made similar statements on many occasions which alluded to photography as a way of investigating the world and the mind's perception of it. The fact that Winogrand worked primarily in black and white is particularly relevant because of the often unexpected transformations which the extraction of color produce in a photographed scene.
Photographing leaves as they change color in the Fall is illustrative of the nuances of translating from color to monochrome. Much of the immediate visual impact we experience in viewing Autumn foliage is due to the interplay of colors in the leaves. Monochrome translation reveals that distinct hues may appear undifferentiated depending on surface reflectivity in the subject and on the chromatic sensitivity of films and lenses. The challenge then for the monochrome photographer is to look beyond the immediate impact of Autumn's colorful displays to explore some of the other visual components of the observed scenes including form, texture and contrast.