At the Virginia Museum of Fine Arts - through June 16, 2013 - a small show of photographs by Aaron Siskind and his contemporaries.  Works are from the 1950s-1960s.  From the curator's essay:

Siskind, along with other abstract photographers of this period—such as Harry Callahan, Minor White, and Gita Lenz—broadened the expressive potential of photography and expanded the definition of abstraction. Unlike painters, these artists composed their images directly from the environment around them, actively looking and moving their camera lens as they sought inspiration in subjects as seemingly mundane as rocks and peeling letters. For the most part their subjects can be easily identified, yet they are considered abstract because extreme close-ups or unusual angles take the image out of a narrative context, allowing the viewer to experience something familiar in a new way.

AARON SISKIND, "Homage to Franz Kline: Rome 83"

1973 Gelatin silver print

15 x 14.5

AARON SISKIND, "Wall Abstraction"

Ch. 50, ca. 1950s, silver print, ca. 1960-72

10 5/16 x 13 3/8

AARON SISKIND, "Wall Graffiti"

ca. 1950s, silver print, ca. 1960-72

13 3/8 x 10 3/8.

AARON SISKIND, "Wall Abstraction"

Ch. 103, ca. 1950s, silver print, ca. 1960-72

9 1/4 x 13 3/16

See more from the Aaron Siskind Foundation