Group f/64 was a group of seven 20th-century San Francisco photographers who shared a common photographic style characterized by sharp-focused and carefully framed images seen through a particularly Western (U.S.) viewpoint. In part, they formed in opposition to the pictorialist photographic style that had dominated much of the early 20th century, but moreover they wanted to promote a new modernist aesthetic that was based on precisely exposed images of natural forms and found objects.