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Canon PowerShot G9 vs Canon PowerShot G9 X: read noise comparison
Canon PowerShot G9DxO
The Canon PowerShot G9 was measured at 6 ISO settings from ISO 80 to ISO 1600. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (80) read noise is 4.47 DN. From ISO 80 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Canon PowerShot G9 XDxO
The Canon PowerShot G9 X was measured at 8 ISO settings from ISO 125 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (125) read noise is 4.63 DN. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Canon PowerShot G9 vs Canon PowerShot G9 X read noise table
| ISO | Canon PowerShot G9 | Canon PowerShot G9 X |
|---|---|---|
| 80 | 4.469 | – |
| 100 | 5.540 | – |
| 125 | – | 4.627 |
| 200 | 10.853 | 6.320 |
| 400 | 21.857 | 10.703 |
| 800 | 44.942 | 18.896 |
| 1600 | 86.823 | 34.535 |
| 3200 | – | 64.893 |
| 6400 | – | 131.599 |
| 12800 | – | 261.379 |
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