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Re: Scanning large maps and blue prints.



Hi Larissa --

Another option to consider, instead of a vendor, is working with a nearby
college or university.  We're lucky enough to have a good relationship with
a college in Massachusetts.  When we wanted to scan some large maps, they
let us use their equipment for free.  It was worth the two-hour drive each
way, since I was able to handle all the documents myself and change the
settings on the scanner to get the best image.  The equipment was located
in their geosciences computer lab, and one of the staff people there
instructed me in its use.

That particular scanner was made by a company called Contex.  It handled
our maps without damage, though I confess I tried only stable maps in
decent condition.  Our library director is investigating the purchase of
another wide format scanner made by Widecom.  If your maps are torn, have
dangly parts, are backed or have thick edging, a wide format scanner
probably isn't the way to go.

Keep in mind also that if you scan in 24-bit color, you'll make images with
extremely large file sizes, which can be difficult to work with.  You might
find that 8-bit greyscale is sufficient for your purposes.

I hope this is helpful to you.  Please let me know if you have other
questions about the process.

Maria Bernier
Digital Imaging Supervisor
G.W. Blunt White Library
Mystic Seaport
P.O. Box 6000
Mystic, CT  06355
http://www.mysticseaport.org



Date:    Tue, 22 Jan 2002 13:49:17 -0600
From:    "Harrison, Larissa D." <LHarriso@STATE.ND.US>
Subject: Scanning large maps and blue prints.

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Hi, I need some words of experience from people who have embarked on
scanning maps printed on blue print paper. I have searched the listserv
archives and only found two entries about scanning large maps. What problems
did you encounter with faded and fragile maps? What standards and procedures
did you use with the vendors? Thanks for your patience.

Larissa D. Harrison
Archives Specialist
State Historical Society of North Dakota
State Archives and Historical Research Library
612 East Boulevard
Bismarck, ND 58505-0830
701-328-2663
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