Over and over again the photographer walks a few steps and peers, rather comically, into the camera; to the exasperation of family and friends, he inventories what seems an endless number of angles; he explains, if asked, that he is trying for effective composition, but hesitates to define it. What he means is that a photographer wants form, an unarguably right relationship of shapes, a visual stability in which all components are equally important. The photographer hopes, in brief, to discover a tension so exact that it is peace.