Olympus PEN E-PL7 vs Olympus PEN EP1: read noise comparison
Olympus PEN E-PL7
The Olympus PEN E-PL7 was measured at 23 ISO settings from ISO 100 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.
At base ISO (200) read noise is 0.97 DN, or 6.1 electrons at the sensor. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 5000 don't change analog gain (digital push). Full well at base ISO is about 23,907 electrons; unity gain is around ISO 1250.
Olympus PEN EP1DxO
The Olympus PEN EP1 was measured at 7 ISO settings from ISO 100 to ISO 6400. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (100) read noise is 3.81 DN. From ISO 3200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Olympus PEN E-PL7 vs Olympus PEN EP1 read noise table
| ISO | Olympus PEN E-PL7 | Olympus PEN EP1 |
|---|---|---|
| 100 | 0.979 | 3.811 |
| 200 | 0.973 | 3.972 |
| 250 | 1.149 | – |
| 320 | 1.376 | – |
| 400 | 1.087 | 5.502 |
| 500 | 1.292 | – |
| 640 | 1.558 | – |
| 800 | 1.866 | 8.815 |
| 1000 | 2.297 | – |
| 1250 | 2.809 | – |
| 1600 | 3.458 | 18.379 |
| 2000 | 4.287 | – |
| 2500 | 5.389 | – |
| 3200 | 6.869 | 35.261 |
| 4000 | 8.456 | – |
| 5000 | 10.411 | – |
| 6400 | 13.269 | 59.714 |
| 8000 | 16.795 | – |
| 10000 | 20.821 | – |
| 12800 | 26.723 | – |
| 16000 | 33.359 | – |
| 20000 | 41.933 | – |
| 25600 | 51.625 | – |
Popular comparisons
- Sony a7 IV vs Nikon Z 6III
- Sony a7 IV vs Canon EOS R6 Mark II
- Nikon Z 6III vs Canon EOS R6 Mark II
- Sony a7 V vs Sony a7 IV
- Sony a7 IV vs Sony a7 III
- Canon EOS R6 Mark III vs Canon EOS R6 Mark II
- Sony a7 V vs Canon EOS R6 Mark III
- Sony a7R V vs Nikon Z 8
- Canon EOS R5 Mark II vs Sony a7R V
- Canon EOS R5 Mark II vs Nikon Z 8
- Canon EOS R5 Mark II vs Canon EOS R5
- Sony a7R V vs Sony a7R IV