Microform
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A Microform is a document that has been compressed to a micro-scale format.
- Example(s):
- Counter-Example(s):
- a Megastructure,
- a Mesoform,
- a Nanostructure.
- See: Physical Document, Electronic Document, Digital Document, Library Service.
References
2018
- (Wikipedia, 2018) ⇒ https://en.wikipedia.org/wiki/Microform Retrieved:2018-12-28.
- Microforms are scaled-down reproductions of documents, typically either films or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about one twenty-fifth of the original document size. For special purposes, greater optical reductions may be used.
All microform images may be provided as positives or negatives, more often the latter.
Three formats are common: microfilm (reels), microfiche (flat sheets), and aperture cards. Microcards, a format no longer produced, were similar to microfiche, but printed on cardboard rather than photographic film.
- Microforms are scaled-down reproductions of documents, typically either films or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about one twenty-fifth of the original document size. For special purposes, greater optical reductions may be used.
2018b
- (PSU, 2018) ⇒ http://guides.libraries.psu.edu/c.php?g=438494&p=3221476 Retrieved:2018-12-28.
- QUOTE: “Microform” is a general term used to describe the microfilm, microfiche, or microprints (micro-opaque) used for the storage of documents that have been photographed and reduced in size in order to conserve space or to preserve materials that deteriorate rapidly.
2018c
- (OSU, 2018) ⇒ http://guides.osu.edu/microforms Retrieved:2018-12-28.
- QUOTE: Microform is a general term for an item, cardboard or film containing miniaturized images of the original document. For example, one microform can contain a whole year's worth of newspapers — or more! Specialized equipment must be used to view or copy items from a microform.
The two most common types are microfiche (thin sheets containing multiple images per sheet) and microfilm (reels of film containing multiple images). The third form is microopaques (microcard and microprint) which are similar to microfiche, except on cardboard.
- QUOTE: Microform is a general term for an item, cardboard or film containing miniaturized images of the original document. For example, one microform can contain a whole year's worth of newspapers — or more! Specialized equipment must be used to view or copy items from a microform.