Digital Film Scanners - Nikon Super Coolscan 8000ED Film and Slide Scanner Review, Information, and Specifications: "Most 'high end' desktop scanners today use 12-bit A/D devices, which divide the incoming signal into 4,096 possible digital values. This is good, but slide film can far exceed the 'dynamic range' (range of light to dark values) that can be captured by a 12-bit A/D system.
The 8000 ED is the third desktop scanner we've seen that uses a 14-bit A/D (the Nikon Super Coolscan 4000ED was the first, the Canon FS 4000U was the second), which divides the input signal into 16,384 possible values. This improvement of a factor of four in digitizing accuracy (along with numerous other improvements in the signal-processing chain) translates into a much greater dynamic range for the scanner, and significantly reduced image noise in shadow areas. Along with its little brother the Super Coolscan 4000 ED, the 8000 ED is one of the lowest-noise scanners we've tested to date. (September, 2001)"
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