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Is Epson 4870 fixed-intensity scanner?

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Steven Woody

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Mar 6, 2007, 9:10:41 PM3/6/07
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i heard many non-professional scanners use fixed-intensity fluorescent
tubes, that means user can not really control the the scanner's
hardware exposure. is Epson's 4870 scanner fall in this class?
thanks.

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woody

Roger S.

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Mar 6, 2007, 10:12:18 PM3/6/07
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Exposure isn't just intensity of light, it's also length of time.
Doubling time= doubling light.

Steven Woody

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Mar 6, 2007, 11:04:21 PM3/6/07
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ok, any way, does the epson 4870 scanner support changing of exposure?
supposing the software interface support it.

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woody

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