TREN
Sony a450 vs Sony a500: read noise comparison
Sony a450DxO
The Sony a450 (DSLR-A450) was measured at 7 ISO settings from ISO 200 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (200) read noise is 1.40 DN. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a500DxO
The Sony a500 (DSLR-A500) was measured at 7 ISO settings from ISO 200 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.
At base ISO (200) read noise is 1.58 DN. From ISO 1600 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a450 vs Sony a500 read noise table
| ISO | Sony a450 | Sony a500 |
|---|---|---|
| 200 | 1.404 | 1.580 |
| 400 | 2.028 | 2.346 |
| 800 | 3.340 | 4.659 |
| 1600 | 6.727 | 8.515 |
| 3200 | 13.269 | 14.320 |
| 6400 | 23.103 | 34.297 |
| 12800 | 49.867 | 67.649 |
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