Film and print scanners

For the most part, scanners can be divided into two distinct varieties - print and film.

Print scanners, which are sometimes also called flatbed or reflection scanners, are designed to convert standard photographs into digital images by reflecting light from the surface of the picture onto a sensor. The film variety captures digital information from negative or slide originals. With these machines the image is scanned by passing light through the film to a high-resolution sensor. This process is the reason why these types of devices are sometimes referred to as 'transmission' scanners. The capture process involves recording the color and brightness of the image, converting these values to digital form and then saving the file to computer (see Figures 11.1 and 11.2).

As most negative and slide originals are smaller than their print counterparts, film scanners generally have higher specifications and are therefore more expensive than flatbeds.

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Transmission scanning

Print Original

Figure 11.1 Reflective scanners, sometimes called 'flatbeds', are used for Figure 11.2 Transmission scanners are specially designed for prints and documents. use with negatives and transparencies, and are usually referred to as film scanners.

Figure 11.1 Reflective scanners, sometimes called 'flatbeds', are used for Figure 11.2 Transmission scanners are specially designed for prints and documents. use with negatives and transparencies, and are usually referred to as film scanners.

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