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RE: filmscanners: RE: filmscanners: pushing dynamic range on the nikon 4000ed--What is Analog Gain

Austin writes ...
> > Unfortunately this isn't what it actually does.  The
> > "analog gain" actually changes the integration time ...
> > ...
> Where did you get the idea (as in a source of information)
> that exposure time is "analog gain"?  ...

  Here we go arguing symantics again!

  The Nikonscan software calls it "analog gain", but it adjusts the exposure
time.  Since there is no "amplifier" per se, the only means of increasing
the signal is a longer integration time.  A longer integration time is also
preferable ... amplification would enhance noise, whereas time will average
the noise and reduce it.

shAf  :o)


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