Title: Microforms, Imaging, and Libraries
1Microforms, Imaging, and Libraries
- LaDawn MusicAudiovisual ServicesLIBR 180
2Summary
- During the course of the work day, I help in the
creation of microfilm and microfiche (they are
also collectively called microforms). A planned
move from the microfilm format to the imaging
format for the office is to be implemented within
the next three years (barring the unforeseen).
There are some distinct advantages and
disadvantages to each system. This presentation
will review the two methods and compare how they
may fit in with library practices.
3What is Microfilm/fiche?
- Microfilm is film on which printed materials are
photographed at greatly reduced size for ease of
storage. It also refers to a reproduction on this
kind of film or a magnification system used to
read the material. Archival microfilm meets the
demands of either the National Preservation
Office Guide to Microfilming or the RLG Standards
(in the USA) - Microfiche is a card or sheet of microfilm
capable of accommodating and preserving a
considerable number of pages in reduced form. It
can also be a sheet of microfilm on which many
pages of microfilm have been stored in jackets
instead of being left on the film reel.
4What are the advantages of Microforms?
- Microfilm offers reassurance that the image on
the film will be legible far into the future. - Archival microfilm meets the demands of either
the National Preservation Office Guide to
Microfilming or the RLG Standards (in the USA).
Microfilm is the product of tested technology,
governed by these standards. Microfilm boasts a
life expectancy of 500 years when created and
stored according to standard. - Microfilm is also robust, reliable,
cost-effective and provides a solid foundation
for scanning to other media. - Microfilm does not require sophisticated
equipment for reading and access. In fact, even
without standard microfilm/fiche viewers, It can
easily be read with a light source and a
magnifying glass.
5More Microform Advantages
- Microforms can enhance access to information that
would otherwise be unavailable because the
original item is at a distant site or is
vulnerable to damage and/or loss through
handling. - Microforms are relatively inexpensive to produce
and to copy. - Microforms come in a number of formats. The most
familiar of these are 16mm or 35mm roll microfilm
and microfiche, the latter resembling a plastic
file card. - Roll microfilm, in either 16mm or 35mm formats,
can be cut into short strips and housed in clear
"jackets" to produce a microfiche. Three types of
film are common in microform collections
silver-gelatin, diazo, and vesicular.
6Microfilm creation process
- First the paper is organized into the order it is
to be filmed in and to a filming area. There each
page is photographed. - This camera set-up is similar to what is used at
my employment. There are both automated and hand
filming cameras available. With hand cameras the
papers are placed one by one and filmed with a
button press. Automated cameras mechanically grab
papers and films each page via sensors. Both
types require constant attention and regular
maintenance to ensure proper filming.
7Microfilm creation process
- Now the film needs to be developed. The machine
depicted here is a processor for microfilm. The
film is run from inside the top of the machine
through six sets of rollers and vats of processor
fluid, fixer fluid, and then water. By the time
it comes out of the processor (about 15 minutes
per film reel depending on the processor), it has
dried and is wound onto the awaiting film reel. - Now the film is ready to be stored and viewed.
8Microform viewers
- Microform viewers come in a variety of shapes and
sizes. Some viewers (like the one pictured here)
have printers built into viewer to return the
film to hard copy format when needed. Others only
offer viewing capabilities and tend to be smaller
then the viewer and printer models. This
particular views is set up for microfiche and
would need to have a reel attachment added to
view a microfilm reel.
9Microfiche creation and storage
- Microfiche cards are slightly different in
creation. The image is photographed directly onto
the a film card and is then ready for storage
without being developed in a separate processor.
There picture here shows one of the common
organizers for microfiche. This can also be used
to store fiche.
10More on storage
- When there are many fiche to store, trays like
the one here can be used. - The trays can then be stored in a standard file
cabinet or in a cabinet with automated shelving.
These shelves move in a circular rotation and
helps to make an optimum use of available space.
11What is Imaging?
- Document imaging is the process by which a
digital picture of the original paper document is
created. Utilizing document scanning software,
the document, when run through a scanner,
converts to an electronic image. Sophisticated
digital imaging software tools can also improve
the quality of the document. It can remove
speckles, straighten the documents, remove
backgrounds that are obscuring the information,
darken and lighten text. - While the quality of paper documents deteriorates
over time, the quality of the electronic
documents remain consistent. However, it is a
read-only format. This feature eliminates
deleting or changing original copies. Documents
can be annotated or otherwise edited once the
documents are copied to a hard drive or other
read/write media. Such annotations are stored as
overlays and do not alter the original image in
any way.1
12Imaging-Preparing
- The imaging system also begins by sorting the
paperwork to be filmed. But instead of being
placed in the order to be filmed, it is separated
by what type of information is on each page. To
use a newspaper for an example, sections may be
separated into categories such as sports,
obituaries, features, business, community
articles, education, entertainment, national
events, reader input, state government, travel,
and classifieds. These sample categories and
others can be separated into subcategories if
desired. The sorted bundle of papers receives a
batch number to be used at the indexing stage.
13Imaging-Scanning
- The papers are now sent through one of two types
of scanners. - The first is a high-speed scanner that quick
scans neat-edged, one-sided papers. - The other is a desktop scanner that is hand fed.
It is mainly used for pages that would cause
problems in the high-speed scanner. Such pages
may have text on both sides or bedraggled edges.
14Imaging-Indexing
- The scanned pages are now ready to be sorted in
the computer system. The pages are looked up in
the computer system via batch number. The
sections, from the preparing stage, are then
attached to the matching index file in the
computer system and if needed the scanned images
are enhanced to improve the quality of the
digital duplicate. - The documents are now in the database for anyone
with access to the system to retrieve. The papers
can then be stored or disposed of as directed by
the companies preferred policy. New paper copies
can be printed from the database as needed
through a computer printer. - To prevent loss of information, the databases are
frequently backed-up in CD format and the CDs at
kept at a separate archives location. This way if
something should happen to either the database or
the location of the database the information can
be restored with minimal expense.
15Libraries and Microforms
- Microforms have been in libraries for decades.
They have been used to store newspapers and other
old documents for future use without risk of loss
or damage to the original documentation. - With other advances in technology, microfilm
seems to becoming an outdated mode of storing
information. However since converting microfilm
to digital images can be a costly venture and
since the materials used to view microfilm are
already in place, the use of microforms in
libraries is not likely to disappear.
16Libraries and Imaging
- Despite its current place, libraries of the
future may choose to replace microfilm with the
digital imaging. Libraries will probably not go
to the expense of setting up imaging stations and
training staff, but they may choose to set up
computers with imaging software and have the
microforms sent out to an independent company to
do the conversions. - The reason for this is mostly convenience.
Imaging does not require the storage space of
microforms. Nor does it require equipment outside
of computers, printers, and software compared to
the file cabinets, microform viewers or
viewer/printers. Also due to the digital
clean-up that can be done on documents, it can
provide a tidier copy then microfilm. - However with the digital databases of articles
and internet access to historical information
available, there is probably not a need for
current archival information to also be stored in
either microform or imaging formats.
17Websites for Microforms
- Dean B. Ellis Library-Microforms Information
http//www.library.astate.edu/dept/micro/microform
s.htm - Goodwin Photo Inc.-Microform Equipment
http//www.goodwinphotoinc.com/repair_parts_manual
s.html - Latin American Collection at Yale University
http//www.library.yale.edu/latinamerica/micro1.ht
ml - The Librarians Yellow pages-Equipment,
Furnishings Supplies http//www.librariansyellow
pages.com/subjects.wcgi?5 - University Libraries, University of
Washington-Microform and Newspaper Collection
http//www.lib.washington.edu/mcnews/ - University of Oregon Libraries The Microform
discussion list http//libweb.uoregon.edu/govdocs/
micrlist.htm - University of Toronto Libraries-Guide to Major
Microform Collections http//www.library.utoronto.
ca/robarts/microtext/collection/
18Websites for Imaging
- Optimis Systems Inc. Online Demonstration
http//www.optimis.com/doc_onl.htm - Image Labs International-Machine Vision and
Imaging Library http//www.imagelabs.com/library.p
hp - Digital Imaging Media Technology Initiative-Web
Resource list http//images.library.uiuc.edu/resou
rces/links.htm - FLAAR-The Digital Imaging Technology Center
http//www.flatbed-scanner-review.org/FLAAR_Digita
l_Imaging_Center/Digital_Imaging_Technology.html - Public Solutions-Public Feeds Showcase
http//www.moreover.com/cgi-local/page?oportalc
Imaging20equipment20news - Ritz Camera-Imaging Equipment News
http//www.photography.com/newsevents.html - Charles Daneys Photography Pages-Photography
Digital Imaging Resources http//www.mbay.net/cgd
/photo/pholinks.htm
19Bibliography
- Frequently Asked Questions. Optimis System,
Inc. 2002. 1 June 2003. q.htm. - Why Microfilm? Scottish Newspapers Microfilming
Unit. 1 June 2003. m.htm. - Why Digitise? Scottish Newspapers Microfilming
Unit. 1 June 2003. tion.htm. - Microfilm. Lexico Publishing Group, LLC. 2003.
13 May 2003 h?qmicrofilm. - Microfiche. Lexico Publishing Group, LLC. 2003.
13 May 2003 h?qmicrofiche. - Schoelkopf, Cheri. Office Assistant, Labor and
Industries. Personal Interview. 16 May 2003. - Trana, Randy. Office Assistant, Labor and
Industries. Personal Interview. 16 May 2003.
20Bibliography
- Why Document Imaging? WinOcular Paperless
Office. 2000. 1 June 2003 m/Why_Document_Imaging/why_document_imaging.html.
- Microfilm and Microfiche. Northeast Document
Conservation Center. 1999. 1 June 2003
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Photographs and ClipArt
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slides 2, 12
21Photographs and ClipArt
- The Microfilm Shop. The Microfilm Shop. 2002. 1
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slides 3, 9, 10. - Scanners for Sale. Donnegan Systems. 2003. 1
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