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PostPosted: Mon Jul 23, 2007 2:15 am 
I can tell you what it is, even though I've never used it.

Every sensor has some pixels which are brighter than other pictures (in other words, these are "bad" pixels which are too bright). When you do a very long exposure, those pixels create bright specks in your picture (you would be photographing a dark scene since that is what long exposure is used for). Long Exposure NR maps those malfunctioning pictures and eliminates them in your long-exposure night shots.

Caleb


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PostPosted: Mon Jul 23, 2007 6:38 am 
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Joined: Sun Nov 05, 2006 11:08 pm
Posts: 7925
Location: Germany
Yep, y'all are right, but:
- high-ISO-NR works only over ISO 400. "normal" is factory default
- long exp. NR works only for exposure times > 8sec. "off" is factory default. I have it "on"

But this also means that under normal circumstances the D80 does not apply NR

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