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Nokia 9 vs Nokia Lumia 1520: read noise comparison

Nokia 9

The Nokia 9 was measured at 17 ISO settings from ISO 100 to ISO 6400. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (200) read noise is 2.58 DN, or 3.4 electrons at the sensor. Read noise keeps falling across the measured range, so the camera isn't fully ISO-invariant there. Settings above ISO 1600 don't change analog gain (digital push). Full well at base ISO is about 21,813 electrons; unity gain is around ISO 270.

Nokia Lumia 1520DxO

The Nokia Lumia 1520 was measured at 7 ISO settings from ISO 100 to ISO 4000. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (100) read noise is 1.29 DN. Read noise keeps falling across the measured range, so the camera isn't fully ISO-invariant there.

Nokia 9 vs Nokia Lumia 1520 read noise table

ISONokia 9Nokia Lumia 1520
1004.1701.292
1254.084–
1604.438–
2002.5851.248
2503.758–
3204.659–
4004.4082.114
5004.500–
6405.169–
8007.9454.891
10008.877–
125010.703–
16009.5144.347
20008.398–
25008.225–
32007.4645.134
4000–5.389
64007.013–

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Data: Photons to Photos · © William J. Claff