In article <[log in to unmask]>, on Thu, 25 Jan 2001 at
13:48:38, Christopher J. Dawson <URL: mailto:[log in to unmask]> writes
>I've also done research into digitalization, and most of what I've found
>suggests that scanning is not a major danger to photographs.

There is a well-documented research report on this by Timothy Vitale,
who also concludes that mechanical damage through handling is a greater
danger than light exposure. His conclusions start:

     "The claims made by some experts on the intensity of flatbed scans
     are overstated. Most scans will be from 1-15 lx-hrs, which is a
     minuscule fraction of the useful life of a document or artwork."

"Light levels used in modern flatbed scanners" by Timothy Vitale.
_RLG DigiNews_, vol.2, no.5, 15th October 1998.
<http://www.rlg.org/preserv/diginews/diginews2-5.html#technical>

Leonard Will

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