Sony NEX-5T vs Sony NEX-6: read noise comparison
Input-referred read noise at base ISO: Sony NEX-5T 5.3 e⁻ (ISO 100), Sony NEX-6 5.5 e⁻ (ISO 100).
Sony NEX-5T
The Sony NEX-5T was measured at 9 ISO settings from ISO 100 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.
At base ISO (100) read noise is 2.19 DN, or 5.3 electrons at the sensor. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 38,326 electrons; unity gain is around ISO 240.
Sony NEX-6
The Sony NEX-6 was measured at 9 ISO settings from ISO 100 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.
At base ISO (100) read noise is 2.16 DN, or 5.5 electrons at the sensor. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 40,075 electrons; unity gain is around ISO 250.
Sony NEX-5T vs Sony NEX-6 read noise table
| ISO | Sony NEX-5T | Sony NEX-6 |
|---|---|---|
| 100 | 2.189 | 2.158 |
| 200 | 3.031 | 2.949 |
| 400 | 4.891 | 4.659 |
| 800 | 8.634 | 8.112 |
| 1600 | 16.111 | 15.348 |
| 3200 | 32.672 | 30.274 |
| 6400 | 64.893 | 61.820 |
| 12800 | 129.787 | 123.640 |
| 25600 | 254.232 | 240.518 |
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