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From:
"D. Kent Thompson" <[log in to unmask]>
Reply To:
Museum discussion list <[log in to unmask]>
Date:
Wed, 19 Dec 2001 18:47:50 -0500
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Hey, I just thought I'd add that the chances are that the glass plates are probably pretty contrasty and dense...if it's tough to make a good print off of them onto modern photo papers, it will be even harder to scan them. What you need is a flatbed scanner with a transparency adapter, but not only does it need a high res. to begin with (not some fake interpolated res), but you will mre importantly need to have the highest dynamic range you can find...this is a term that relates to the contrast range (from the shadows to the highlights) that the scanner is able to hold....cheap scanners have low dynamic ranges...for transparencies & negs, you'll need the highest you can afford. Something comparable to what you'd find in a desktop slide scanner most likely....and even then, it may be tough to get a good scan. I wish I could give you a good model to pursue, the mid to upper level Agfa scanners have been good in the past, but I don't think the right scanner for your purposes will be found in an office supply store...

If a model comes to mind, I'll get back with you all, but look at the specs for density range, or dynamic range as well as the true resolution....a second consideration would be in the software interface as well. Hope this helps somehow,

KT

Kent Thompson,  Photographer
North Carolina Museum of History

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Opinions expressed in this message may not represent the policy of my agency.

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