D800: different noise mechanisms

Started Jun 3, 2013 | Discussions thread
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mibadt
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D800: different noise mechanisms
Jun 3, 2013

How,

Having shot my D800 (in RAW)  I wonder if somebody can elaborate about the resulting overall noise in the following night/low light exposure alternatives (assume all exposure sets use the same F=5.6 aperture):

  • Shutter = 240 seconds  ISO=100
  • Shutter =30 seconds  ISO=800
  • Shutter= 8 seconds  ISO=3200
  • 8 multiple exposures each 30 seconds/ ISO 100
  • 8 multiple exposures each 8 seconds/ ISO 400

Besides, is there a difference in overall noise if I combine those in-camera vs. during post-processing ?

Thanks

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Regards,
Michael Badt
Photos gallery: http://www.flickr.com/photos/mibadt/

Nikon D800
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