Page 158 - DLIS006_INFORMATION SOURCES AND SERVICES

Unit 7: Translation and Reprographic Services

is suitable for illustrations, photos, naps, or handwritten copy, as well as for typed copy that is Notes
urgently needed in the receiving office. Newer models can transmit a standard 8Vz X 11 inch
sage of pictorial and printed matter in only 2 or 3 minutes’ time.

7.6.3 Micrographics

Micrographics are the production of microform and the preparation of enlarged, lard copy from
these forms. A microform is any form or type of film or paper containing microphotographic
images. These images are small photographs where the details of the subject may not be visible
without enlargement. Because these images are often similar to the film used in movie projectors,
microforms are generally referred to as “microfilm.”

Microfilm

Microfilm is used primarily for the storage and retrieval of information and records. Microfilmed
records take up only 2 per cent of the space needed for paper records, reducing volumes of
records that once required thousands of square feet of storage space to a few square feet, Microfilm
is available in four forms:

Figure 7.10: Microfilm Forms: (Top-left) Roll Film, (Top Right) Transparent Jacket Film,
(Middle) Microfiche, (Bottom) Aperture Card (Courtesy of Eastman Kodak Company)

Roll: Most microfilm begins as a roll of 16 mm or 35 mm film. The information can be
retained in the roll form or converted to other formats. A cartridge is a roll of film with a
plastic cover, called a magazine. The cartridge provides faster access to a roll of film
because it self-threads into the reader; a file label can also be directly applied to the 4x4x1
inch magazine.

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