Simply defined, a digital image is any image taken from a computer, scanner, or digital camera. Digital cameras create these images using a CCD chip, which is composed of many small light sensitive cells arranged to divide the pictures into rows and columns of smaller sub areas, and scanners function almost the same way. Slide scanners contain one row of light sensitive cells, and a motor that moves the row down the slide, creating columns that form the total image grid.
Why Is It Better To Scan Slides As Opposed To Scanning Prints?
Scanning film and film slides, generally speaking, produces higher quality images than simply scanning prints. The main reason for this is because scanning the film or slide is, in a sense, using the original image to make a copy, while an already developed print is more of a second generation copy, which will in turn produce a third generation copy once it is scanned.
Film also contains greater detail and contrast, since most film is capable of at least 3,000 dpi, compared to 300 dpi for color photo paper. A film scanner allows for enough quality image pixels to be scanned, as opposed to […]

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