GX7: Extended ISO125 Image Degradation?

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jeffharris
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GX7: Extended ISO125 Image Degradation?
11 months ago

So,  my GX7 is on it's way down from Canada. I was reading the PDF manual (I found on the British Panasonic site) a was happy to see that the GX7 has extended ISO that goes down to ISO125. I've got a bunch of fast lenses, so that suits me just fine.

BUT, isn't extended ISO sort of faux ISO, tweaked electronically somehow?

If so, I was curious if there's any sort of image degradation shooting with extended ISO.

 jeffharris's gear list:jeffharris's gear list
Panasonic Lumix DMC-GX7 Panasonic Lumix G Vario 7-14mm F4 ASPH Voigtlander Nokton 25mm F0.95 Voigtlander Nokton 42.5mm F0.95 Voigtlander Nokton 17.5mm F0.95 Aspherical +25 more
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