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Canon PowerShot S120 vs Canon PowerShot S90: read noise comparison
Canon PowerShot S120DxO
The Canon PowerShot S120 was measured at 9 ISO settings from ISO 80 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (80) read noise is 1.30 DN. From ISO 3200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Canon PowerShot S90DxO
The Canon PowerShot S90 was measured at 7 ISO settings from ISO 80 to ISO 3200. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (80) read noise is 2.01 DN. From ISO 80 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Canon PowerShot S120 vs Canon PowerShot S90 read noise table
| ISO | Canon PowerShot S120 | Canon PowerShot S90 |
|---|---|---|
| 80 | 1.301 | 2.014 |
| 100 | 1.625 | 2.445 |
| 200 | 2.789 | 4.438 |
| 400 | 5.776 | 11.004 |
| 800 | 10.629 | 21.706 |
| 1600 | 19.027 | 45.887 |
| 3200 | 30.910 | 82.139 |
| 6400 | 82.139 | – |
| 12800 | 190.019 | – |
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