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> The polaroid lists a dmas of 3.4 where as the nikon has a 4.2. < The 4.2 doesn´t mean anything as it is only the calculated log of the dynamic range, the theoretical max. resolution, of the used 14 bit A/D converter. log(2^14 bit)=4.2. For a 12 bit/channel scanner this formula gives log(2^12)=3.6, a number that is given very often too. This kind of marketing-BS is a bit like advertising a car as "3 gals/100 miles fast". Have fun Kai - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.