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Panasonic Lumix DC-GH6 (ES) vs Panasonic Lumix DC-GH7: read noise comparison

Panasonic Lumix DC-GH6 (ES)

The Panasonic Lumix DC-GH6 (ES) was measured at 28 ISO settings from ISO 50 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (800) read noise is 18.90 DN. From ISO 1000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Panasonic Lumix DC-GH7

The Panasonic Lumix DC-GH7 was measured at 28 ISO settings from ISO 50 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 9.78 DN, or 3.7 electrons at the sensor. From ISO 3200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 23,983 electrons; unity gain is around ISO 40.

Panasonic Lumix DC-GH6 (ES) vs Panasonic Lumix DC-GH7 read noise table

ISOPanasonic Lumix DC-GH6 (ES)Panasonic Lumix DC-GH7
5033.8259.254
6444.3249.318
8042.8149.580
10044.6329.781
12545.25510.196
16045.57010.778
20044.94210.196
25039.12411.081
32046.20611.959
40050.91414.123
50047.83516.223
64058.89219.160
80018.89620.678
100021.25925.281
125025.99230.910
160031.55938.319
200038.85447.505
250048.16859.302
320060.54858.892
400077.17275.061
500096.33693.701
6400120.259118.603
8000151.167150.123
10000192.672187.403
12800237.207237.207
16000296.112300.246
20000367.093374.806
25600458.253474.413

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Data: Photons to Photos · © William J. Claff