TREN
Panasonic Lumix DMC-GX1 read noise vs ISO
The Panasonic Lumix DMC-GX1 was measured at 8 ISO settings from ISO 160 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (160) read noise is 3.66 DN. From ISO 6400 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Panasonic Lumix DMC-GX1 read noise table
| ISO | Read noise (DN) | log₂ |
|---|---|---|
| 160 | 3.655 | 1.87 |
| 200 | 4.627 | 2.21 |
| 400 | 5.063 | 2.34 |
| 800 | 5.776 | 2.53 |
| 1600 | 9.254 | 3.21 |
| 3200 | 20.535 | 4.36 |
| 6400 | 34.060 | 5.09 |
| 12800 | 105.420 | 6.72 |