Best known for his photojournalism in the illustrated magazines of the day, Lopez also explored other areas, such as architecture, the dance, and anthropology. But it is his precise and rigorous, lucid and critical images of the streets of the Mexican capital, that make him the photographer par excellence of the great and contradictory city at mid-century. Lopez also produced a kind of cinema, a sort of street performance,A" which demonstrates how a an imaginative observer can find efficient and unsuspected narrative resources in still photos.