N.º 21 2015 pp. 53-62

Nota
Notas práticas sobre a fotografia de ultravioleta para o exame de obras de arte

Antonino Cosentino

Cultural Heritage Science Open Source, Piazza Cantarella 11, Aci Sant'Antonio, 95025, Italy

antoninocose@gmail.com

Resumo

Este artigo discute dois métodos fotográficos baseados no uso da radiação ultravioleta para o exame de obras de arte: a fluorescência de ultravioleta (UVF) e a reflectância de ultravioleta (UVR). Enquanto a fotografia de UVF pode ser efectuada com qualquer máquina fotográfica digital, as imagens de UVR são adquiridas com uma máquina fotográfica digital modificada para espectro completo, sensível à radiação ultravioleta com comprimento de onda até cerca de 360 nm. Esta modificação envolve a remoção do filtro interno sobre o sensor CCD ou CMOS de forma a tornar a máquina sensível à radiação ultravioleta e infravermelha. Este artigo descreve os procedimentos e o equipamento necessários para a realização desses exames, discutindo quer estudos de casos quer os resultados obtidos com amostras preparadas com esse objectivo.

Palavras-chave

Fotografia de fluorescência de ultravioleta
Fotografia de reflectância de ultravioleta
Fotografia técnica

Idioma

Inglês

Título original

Practical notes on ultraviolet technical photography for art examination

DOI

10.14568/cp2015006

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RIS | Endnote

Citação

História

Recebido: 2015-5-29
Revisto: 2015-7-5
Aceite: 2015-7-13
Online: 2015-7-24
Publicação: 2015-7-24

Referências

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Endereço persistente: https://doi.org/10.14568/cp2015006