TREN
Sony a290 vs Sony a300: read noise comparison
Sony a290DxO
The Sony a290 (DSLR-A290) was measured at 6 ISO settings from ISO 100 to ISO 3200. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (100) read noise is 1.88 DN. From ISO 200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a300DxO
The Sony a300 (DSLR-A300) was measured at 6 ISO settings from ISO 100 to ISO 3200. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (100) read noise is 1.73 DN. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a290 vs Sony a300 read noise table
| ISO | Sony a290 | Sony a300 |
|---|---|---|
| 100 | 1.879 | 1.729 |
| 200 | 3.182 | 2.868 |
| 400 | 6.021 | 6.063 |
| 800 | 12.729 | 11.314 |
| 1600 | 23.918 | 21.259 |
| 3200 | 51.984 | 39.397 |
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