La representación fotográfica de la sonrisa en las imágenes etnográficas chaque？as de Guido Boggiani y Grete Stern

the intention of this work was to explore the relation between the ethnographical images and the expressions of laughter of the subjects portrayed in them. corpus of analysis conformed the pictures of natives of the paraguayan chaco obtained by guido boggiani (1896-1901) and of the argentine chaco registered by grete stern (1958-1964). examining arguments of the cultural history and aesthetic of the photography, it noticed that the smile obeys to a situation of interrelation and proximity. situation that is assimilated to the established one between photographed photographers and that adjusts the violence transferred by most of the ethnographic registries. after investigating in the production, circulation and reception of the pictures of natives smiling obtained by boggiani and stern, conclude that the smile constitutes a visual shade within the photographic representation of the natives of chaco. shade that betrays the expectations of a kind academic speech to the moral offense and the emotional impact.