
The negative collection, started soon after 1900, contains glass plates as well as nitrate and acetate film. The negatives are archived in different groups according to size (35 mm / 4 x 4.5 cm stereoscopic/ 6 x 9 cm / 9 x 12 cm / 13 x 18 cm / 18 x 24 cm), with a sequential registry number within each group. | Currently the main efforts of the Amatller Institute of Hispanic Art are concentrated on the transference of the traditional system, photographs as well as index, to a digitised system. With the aim of preserving the large amount of information contained in each large-format negative, the photographs are digitalised as images as large as currently available technology easily allows (up to 50MB) and stored as uncompressed TIFF files on CD-ROMs. Smaller reference images (the largest being 720 pixels) are stored in JPEG format on a servers hard disk for on-line consultation. The database manages registry files divided by buildings, furniture, photographs, digital images, people, institutions, bibliography, documentation etc, with corresponding cross-referencing. As of December 2007, 70.000 images have been digitalised while some 40.000 objects have been registered. |