The electrical power for the carrier is a plug-in connection located at the rear of the reader printer. The motorized film carrier can only be used on reader printers that have a prism lens for image rotation. The Aperture carrier can also read microfiche and Jackets. Most reader printers are not bi-mode. So, when you order a reader printer, you must know if you have positive or negative film.
Lets start with how the film image was created.
A film camera uses a reduction lens to reduce the original document size to the film image size you find on your microfilm. This filming process is very similar to that of a personal camera. A good example of the role of the original document size in determining the magnification lens, as pointed out in the preceeding statement. Try this example. Back To Top . . .