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Re: filmscanners: exposing C41 for scanning ( was gibberish

In a message dated 6/30/2001 6:35:25 AM EST, rafeb@channel1.com 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.

Ed Hamrick


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