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Re: filmscanners: exposing C41 for scanning ( was gibberish
In a message dated 6/30/2001 6:35:25 AM EST, firstname.lastname@example.org writes:
> I much prefer to believe they're switching the illuminant
> colors electronically.
There's one clue that they're switching the illuminant colors
electronically. If you do single-pass multi-scanning and
increase the number of passes, the frequency of all the noises
goes down. The other clue is looking at where the LED is
mounted inside the scanner - it's mounted very solidly. One
last clue is watching the focus operation - the lights come
on one at a time and flicker on and off quite rapidly.
I've experimented with doing really, really long CCD
exposures, and the only time a noise happens is when
the stepper motor advances the whole mechanism.