Analysis of hand-colored photographic prints.

Ali M., Belal A., Ciliberto E., Gueli A.M., Henin E., Pasquale S., Politi G.

VI - Fisica applicata, acceleratori e beni culturali
Aula 29C-2 - Giovedì 20 h 09:00 - 13:00
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The aim of the study is the identification of pigments used in 25 hand-coloured antique photographic prints. The photographs belong to a private collection and are dating back to the period from 1850 until 1950. Spectrophotometric analysis was performed to evaluate the optical and chromatic characteristic of the pigments; while X-Ray Fluorescence was used to study their elemental composition. Multispectral Imaging had instead allowed the detection of any damage and retouching areas on the surface. Finally, artificial aging was carried out on a selected set of samples to study the chromatic variations due to temperature, humidity and UVA radiation changes.

Società Italiana di Fisica - Via Saragozza 12 40123 Bologna P.IVA 00308310374 | credits