Identifying Photograph Deterioration

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A p.ographic collection that contains any flexible, transparent film negatives from the time period of 1890-1950 is very likely to contain at least some nitrate film. Since these negatives need special attention, they should immediately be separated from other negatives. Deteriorated nitrate negatives are easy to identify, but .The following ins.utions have put together useful references for identifying p.ographs: Northeast Do.ent Conservation Buffered paper enclosures are recommended for brittle prints that have been mounted onto poor quality secondary supports and for deteriorated film-base negatives. Buffered enclosures are not .This book presents technical information in plain, understandable language and is supported throughout by high-quality color reproductions showing the various print types and their forms of deterioration. The fine de.s of print structure are pictured in numerous p.omicrographs. This book presents technical information .Black-and-white print, faded due to image oxidation, Traditional color p.o faded due to prolonged light exposure, Color p.o that has shifted color due to uneven dye fade. Inkjet print faded by exposure to atmospheric ozone, Gelatin yellowing in traditional color p.o, Color coupler yellowing in traditional color p.o..

Both nitrate and acetate film deteriorate, and while some of the characteristics of their early deterioration are similar, distinguishing between the two .Table of Contents Foreword Roger Taylor Conservation andysis The Conservation Treatment of Original Coatings on P.ographs: Issues and Current Practice.Tips for Identifying and P.ographing Mushrooms . by Dr. Robert Berdan .Rehabilitating Interiors in Historic Buildings: Identifying and Preserving Character-Defining Elements. H. Ward Jandl. Identifying and Evaluating.

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