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Canon PowerShot S90 vs Canon PowerShot SX50 HS: read noise comparison
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 SX50 HSDxO
The Canon PowerShot SX50 HS was measured at 8 ISO settings from ISO 80 to ISO 6400. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (80) read noise is 2.04 DN. Read noise keeps falling across the measured range, so the camera isn't fully ISO-invariant there.
Canon PowerShot S90 vs Canon PowerShot SX50 HS read noise table
| ISO | Canon PowerShot S90 | Canon PowerShot SX50 HS |
|---|---|---|
| 80 | 2.014 | 2.042 |
| 100 | 2.445 | 2.639 |
| 200 | 4.438 | 4.199 |
| 400 | 11.004 | 6.190 |
| 800 | 21.706 | 12.641 |
| 1600 | 45.887 | 23.752 |
| 3200 | 82.139 | 58.485 |
| 6400 | – | 89.884 |
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