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Friday, May 30 • 9:00am - 9:30am
(Photographic Materials Session) Fototeca Pedro Guerra: Conservation of the Photographic Archives

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The Fototeca Pedro Guerra is part of the School of Anthropological Sciences of the Universidad Autónoma de Yucatán, México. The majority of its holdings are photographic processes from wet collodion to color negatives. There are a few prints: from albumins to gelatin printing proofs and recently, piezography prints of the Fototeca files. 

One of the great challenges has been the preservation of negatives in tropical climates. The city of Mérida, Yucatán is located South of the Tropic of Cáncer, with a hot and humid climate; the average temperature is around 86 °F with RH humidity of 70% to 90% during the rainy season. The hottest months are April and May, where temperature could reach up to 104° F.

These climatic conditions represent a great challenge and take a large amount of economical resources of the institution in charge of preserving the archives. For this reason, a special archive storage area was built in 1985 to improve the environmental conditions. Two AC units and one dehumidification extractor were purchased later to keep the environmental conditions of the archive storage area at 64.4° F and the RH at about 30-40% all yearlong.

The storage area has a gate to prevent the direct entry of air.  The interior has four rooms; two of them to preserve negatives on glass support, one for film and the last one has a freezer and it is where other activities take place.

In the presentation there will be a discussion of damages to negatives and the actions designed to preserve them.  Additionally, there will be a discussion on freezing cellulose nitrate film and cellulose acetate film.

 

Speaker(s)
avatar for Cinthya Cruz

Cinthya Cruz

LACS Recipient, la Universidad Autónoma de Yucatán
fotografía, pintura, museos, consrvación | | | Responsible for the conservation and digitization of photographic collections.  The most important projects have been: | -       the Digitization and freezing of a nitrate film collection, the high resolution digitization of the Pedro Guerra photo collection | -       the digitization and classification of the... Read More →


Friday May 30, 2014 9:00am - 9:30am
Grand Ballroom C

Attendees (33)