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Drum scanner

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Drum scanner
High quality and very expensive scanner used by repro houses to scan transparencies, negatives and prints. Originals are mounted on the curved surface of a transparent drum. As the drum rotates a fine beam of transmitted or reflected light scans the origi
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Drum scanner
Techniques Glossary Drum scanner
High quality and very expensive scanner used by repro houses to scan transparencies, negatives and prints. Originals are mounted on the curved surface of a transparent drum.

Drum Scanners
Drum scanners are the more professional and effective choice for scanning images.

drum scanner
A high-resolution scanning device used in the most demanding professional applications. They can often be the source of extremely large files. See scanner and film scanner.
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drum scanner
A 'high end' device using photomultiplier tube technology to capture images which are mounted on a cylinder.
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A high-quality image-capture device. The image to be capture is wrapped around a drum that spins very fast while a light source scans across it to capture a digital version of the image.

~s used in professional printing plants can scan anything. The film is stuck to a huge drum with almost no size or limitations on weird shapes. If you want to pay someone else $20 - $100 then this is always the best way to have it scanned.

~ courtesy of Fujifilm.
Although digital cameras are the most popular devices used to capture photos, scanners are still widely used to scan slides, negatives, and prints.

PMTs are found in ~s and tend to provide the ultimate in image quality in the world of scanning.
Pixels Per Inch, see Resolution below.

Rotary-~s provide the highest quality for converting images from film or prints, but they are very expensive. Rotary-~s are capable of producing resolution ranging from 1,000 to 5,000 dpi.

In the professional and advanced amateur segments, Photo CD had been eclipsed by low cost desktop scanners such as those from Nikon and Minolta in the mid range, and by ~s at the very high end.

This first gifts of the digital revolution for photographers who wish to compete with painters were the ~ and line-at-a-time digital printing systems. After exposure, the image never went through another lens. The film was scanned one line at a time by the ~.

A) There's no question that a high-end ~ or an Imacon scanner will give superior scans. But will you see that much difference in the size prints you want to make?

There are three types of scanners available: flatbed, ~s, and film scanners. Flatbed scanners are fine for prints, but not negatives and slides. Drum scans produce the highest quality, but are very expensive and available mainly at professional labs.

If you can afford one, then ~s will give consistently better results as they cope better with high contrast images, often a feature of underwater wide-angle shots, where the sun or surface is in the picture.

Photo CD - Kodak's professional service where they process your film and then scan the images using a very expensive ~ and output these images to a CD. You get several different sized resolution images of each of your film pictures, from small to very large.

An input device in which to capture a piece of artwork onto a computer as a digital file. A scanner uses light sensitivity to translate the picture into a pattern of dots. Types of scanner: Flatbed scanner, ~, transparency scanner, scanback and digital camera.

In-house scans with a Nikon Coolscan are ideal for all web uses and many other immediate purposes. For higher-quality needs, he creates image files from an Imacon FlexTight 949, which he thinks of as a pseudo-~-providing high-quality files acceptable for practically all publishing ...

See also: See also: What is the meaning of Scanner, Film, Image, Camera, Photograph?

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