Unidentified man and woman. F. Grice, ca. 1855.
Most images are digitized | All jpegs/tiffs display outside Library of Congress | View All
Digitizing the Daguerreotype Collection
Black-and-white copy negatives, ranging in size from 4x5- to 8x10-inches, have been made for all of the Library's daguerreotypes. In addition, 4x5-inch color transparencies were made for about forty of the daguerreotypes. The daguerreotype cases have not been systematically photographed. Descriptive information about the cases can be found in the catalog records.
Digital images were made from the copy negatives and color transparencies in 1995-96 by contractors and Library of Congress staff. The "inline" thumbnail images appearing with the catalog records have a spatial resolution of approximately 200x150 pixels. The larger images have an average spatial resolution of 1400x1075 pixels and are compressed with JPEG (Joint Photographic Experts Group) algorithm.
