TREN
Sony a200 vs Sony a230: read noise comparison
Sony a200DxO
The Sony a200 (DSLR-A200) 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 1.89 DN. From ISO 200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a230DxO
The Sony a230 (DSLR-A230) 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 1.69 DN. From ISO 200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.
Sony a200 vs Sony a230 read noise table
| ISO | Sony a200 | Sony a230 |
|---|---|---|
| 100 | 1.892 | 1.693 |
| 200 | 3.182 | 3.095 |
| 400 | 6.453 | 5.816 |
| 800 | 11.876 | 10.778 |
| 1600 | 23.425 | 22.316 |
| 3200 | 43.411 | 44.324 |
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