Olympus E-30 vs Olympus E-410: read noise comparison
Input-referred read noise at base ISO: Olympus E-30 15.2 e⁻ (ISO 200), Olympus E-410 22.2 e⁻ (ISO 100).
Olympus E-30
The Olympus E-30 was measured at 16 ISO settings from ISO 100 to ISO 3200. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.
At base ISO (200) read noise is 3.63 DN, or 15.2 electrons at the sensor. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 16,969 electrons; unity gain is around ISO 840.
Olympus E-410
The Olympus E-410 was measured at 5 ISO settings from ISO 100 to ISO 1600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.
At base ISO (100) read noise is 3.25 DN, or 22.2 electrons at the sensor. From ISO 400 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 27,428 electrons; unity gain is around ISO 680.
Olympus E-30 vs Olympus E-410 read noise table
| ISO | Olympus E-30 | Olympus E-410 |
|---|---|---|
| 100 | 3.555 | 3.249 |
| 125 | 4.563 | – |
| 160 | 5.776 | – |
| 200 | 3.630 | 5.278 |
| 250 | 4.532 | – |
| 320 | 5.776 | – |
| 400 | 5.134 | 6.681 |
| 500 | 6.409 | – |
| 640 | 8.168 | – |
| 800 | 8.340 | 13.269 |
| 1000 | 10.629 | – |
| 1250 | 13.737 | – |
| 1600 | 16.795 | 26.538 |
| 2000 | 21.407 | – |
| 2500 | 26.909 | – |
| 3200 | 32.900 | – |
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