There's a large number of ways you can write down numbers to define a range. There is only one way in common use to express a range in a single number that is independent of gain and other things that are irrelevant - as a ratio.
You can express that ratio in a number of ways, dimensionless plain number or as a log value etc. Julian At 12:55 30/08/02, you wrote: >"Julian Robinson" <[EMAIL PROTECTED]> writes: > > >>>>>>>>>>> >... It is not hard to understand - 1dB is a small range (about 1.26 to 1), >100dB is a big range (10000000000 to 1). The range we are discussing is the >range from MDS to max signal, which in scanner case is Dmax to Dmin. ><<<<<<<<<< > >There are _two_ ways to talk about "Dmax to Dmin", you can talk about their >absolute values (transmittances in the range 0 to 1, for example) as a >density range or you can talk about the ratio of Dmax to MDS (or Dmin to MDS >depending on the definitions) as the dynamic range. If you claim that these >are equivalent, then Austin and I disagree, but if you think they are >different, then we all agree. That's all there is here. > >David J. Littleboy >[EMAIL PROTECTED] >Tokyo, Japan > > > >---------------------------------------------------------------------------------------- >Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe >filmscanners' >or 'unsubscribe filmscanners_digest' (as appropriate) in the message title >or body ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
