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Olympus SP-570 UZ vs Olympus XZ-1: read noise comparison
Olympus SP-570 UZDxO
The Olympus SP-570 UZ was measured at 6 ISO settings from ISO 64 to ISO 1600. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (64) read noise is 4.41 DN. From ISO 64 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Olympus XZ-1DxO
The Olympus XZ-1 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 3.29 DN. Read noise keeps falling across the measured range, so the camera isn't fully ISO-invariant there.
Olympus SP-570 UZ vs Olympus XZ-1 read noise table
| ISO | Olympus SP-570 UZ | Olympus XZ-1 |
|---|---|---|
| 64 | 4.408 | – |
| 100 | 6.727 | 3.294 |
| 200 | 14.621 | 6.063 |
| 400 | 27.665 | 12.381 |
| 800 | 60.969 | 23.918 |
| 1600 | 104.691 | 43.111 |
| 3200 | – | 58.485 |
| 6400 | – | 96.336 |
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