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The LS-8000 uses a tri-line CCD chip. In normal scan mode, it uses all three, although "rumor has it" only one is calibrated with each scan. This makes good sense, since the capture speed in increased nearly 3X. The LS-8000 also used a more diffused light source (although still LED). The Super fine mode uses only the one calibrated CCD line. Art gary wrote: > I think you missed my point. It is possible for a LED design to have more > variance of illumination on a short term basis (i.e. within a scan) than a > CCFT, which is really hard to change intensity. A stepper motor glitch > hitting the LED power supply would be an example. > > Does the Nikon 8000 differ from previous Nikon scanners (one CCD and 3 > colors of light as opposed to a 3 line CCD and white light)? If so, I simply > don't understand this line: > > ====== > It was incompetent negligence beyond belief that a Nikon engineer > expected the same calibration of one CCD to apply to all three to an > accuracy of more than 14-bits! > ======= > > So what are "all three"? > > > - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.