Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.
Washington, D.C., 2007. "Main Reading Room, Library of Congress Thomas Jefferson Building. View from above showing researcher desks." Photograph (made with a Phase One P45+ digital back) by Carol Highsmith. View full size.