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GH1: NR effect on raw - strange results

Started Aug 13, 2009 | Discussions thread
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GaborSch Veteran Member • Posts: 7,203
GH1: NR effect on raw - strange results

I analyzed a few raw images of the GH1 from Imaging Resources. They have posted some labelled NR1, NR3 and NR5.

The effect on the raw image data is:

ISO 200: not apparent (perhaps the exposure is not low enough?)
ISO 400: NR5 is affecting the raw data
ISO 800: NR1 and NR3 are affecting the raw dat5a
ISO 1600: NR1 is affecting the raw data
ISO 3200: no effect at all

This is pretty confusing. Perhaps Imaging Resources have messed up the labeling? Can someone check out the true NR option? I guess some Panasonic program does display the camera settings. These are the files (for example):



on the page http://www.imaging-resource.com/PRODS/DMCGH1/DMCGH1THMB.HTM

Btw, is it well-known, that the raw data undergoes noise reduction? This occurs very seldom; I know of only some Sonys doing that.

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