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Encyclopedia > Rollfilm

The roll film was invented by Eastman Kodak, and was the prime factor in making photography available for the common man.


In producing roll film, photographic film is rolled onto a single wood, metal or plastic bobbin with a protective outer backing paper.


Due to the backing paper being non-translucent, the photographer may load the film into the camera in subdued daylight. As images are taken, exposed film is rolled over to an identical but initially empty receiving bobbin. For cameras with simple advance mechanisms, most roll film formats have frame number markings printed on the backing paper, visible through a red window at the rear of the camera. When all images are exposed, the film is not rewound. Instead, the now empty bobbin is moved ready to become the receiver of the next roll of film.


See also: film format


  Results from FactBites:
 
SunRise Imaging – The Leader in Microfilm, Rollfilm, Microfiche and Aperture Card Scanners (301 words)
In keeping with it tradition since 1991, SunRise Imaging continues to lead the microfilm industry by incorporating the latest in technology in its new family of products.
The 3-in-1 TurboScan, together with the latest ScanFlo scanning and image processing application provides, unparalleled performance in terms of speed, functions and features.
The system not only includes RowScan for higher fiche scanning throughputs but also ReelScan that allows rollfilm to be scanned continuously for post segmentation and image processing.
rollfilmguide (754 words)
A) Rollfilm is a wide strip of film backed with a paper backing which is wound onto a spool.
All rollfilm sizes other than 120 (and 220) are effectively out of production although there are sources available for some of them.
First point to note is that unlike 35mm - rollfilm is not rewound at the end.
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