Panasonic Lumix GX7 Review
Panasonic GX7 High ISO Noise Reduction
The Panasonic GX7 offers eleven(!) settings for noise reduction, ranging from -5 to +5. The user manual doesn't state at which ISO noise reduction kicks in, so we've started with ISO 125 (extended) to find out.
See for yourself how the Panasonic GX7's "0" (default), "-2" and "-5" High ISO NR settings compare to RAW without noise reduction under daylight-balanced lighting. (Note that these RAW images also have no sharpening applied, so they are softer than camera JPEGs at low ISOs.) Click on any of the crops below to see the corresponding full-sized image.
As you can see, all of the Panasonic GX7's noise reduction settings apply noise suppression at all ISOs, even the "-5" setting. The "-2" and "-5" setting do apply progressively less luminance noise suppression than the default, but as you can see, chroma noise is still fairly aggressively suppressed at all settings.
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Note: For details, test results, and analysis of the many tests done with this camera, please click on the tabs at the beginning of the review or below.