TREN
Olympus PEN E-P5 read noise vs ISO
The Olympus PEN E-P5 was measured at 9 ISO settings from ISO 200 to ISO 25600. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (200) read noise is 0.98 DN. From ISO 1600 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Olympus PEN E-P5 read noise table
| ISO | Read noise (DN) | log₂ |
|---|---|---|
| 200 | 0.979 | -0.03 |
| 250 | 1.231 | 0.30 |
| 400 | 1.157 | 0.21 |
| 800 | 2.144 | 1.10 |
| 1600 | 3.555 | 1.83 |
| 3200 | 7.210 | 2.85 |
| 6400 | 14.221 | 3.83 |
| 12800 | 30.274 | 4.92 |
| 25600 | 60.129 | 5.91 |