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D700 - Long Exposure Noise Reduction

blw

Richmond, US
28713 posts

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"RE: D700 - Long Exposure Noise Reduction"

blw Moderator Awarded for his high level of expertise in various areas Nikonian since 18th Jun 2004
Fri 26-Dec-08 01:12 PM

That doesn't look like it's affected by amp noise, so probably no effect at all. What Long Exp NR does is to eliminate the pinkish blobs that sometimes seem to intrude on the edges of frames with long exposures. It's caused by thermal buildup on electronic components near the sensor, so the various cameras have different liabilities in this regard. (Presumably also the various sensors affect this too.)

The way it works is to take your exposure, then leave the shutter closed and captures another one that should be all blank. If amp noise is affecting the sensor, the camera can safely conclude that anything in the blank exposure should not be, and it subtracts that from your exposure before it saves it to flash memory.

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Brian... a bicoastal Nikonian and Team Member

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A general, generic topic D700 - Long Exposure Noise Reduction [View all] , SWLD , Thu 25-Dec-08 11:45 PM
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