Sony RX100 V vs Sony RX100 VI: read noise comparison

Input-referred read noise at base ISO: Sony RX100 V 3.7 e⁻ (ISO 125), Sony RX100 VI 3.2 e⁻ (ISO 125).

Sony RX100 V

The Sony RX100 V (DSC-RX100M5) was measured at 23 ISO settings from ISO 80 to ISO 12800. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (125) read noise is 3.97 DN, or 3.7 electrons at the sensor. From ISO 1250 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 5000 don't change analog gain (digital push). Full well at base ISO is about 14,558 electrons; unity gain is around ISO 120.

Sony RX100 VI

The Sony RX100 VI (DSC-RX100M6) was measured at 23 ISO settings from ISO 80 to ISO 12800. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (125) read noise is 4.11 DN, or 3.2 electrons at the sensor. From ISO 1000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 3200 don't change analog gain (digital push). Full well at base ISO is about 11,975 electrons; unity gain is around ISO 100.

Sony RX100 V vs Sony RX100 VI read noise table

ISO	Sony RX100 V	Sony RX100 VI
80	3.837	4.170
100	4.257	4.659
125	3.972	4.112
160	4.438	4.691
200	5.063	5.389
250	5.897	6.320
320	6.916	7.413
400	8.112	8.938
500	9.714	10.411
640	11.551	12.641
800	13.737	15.242
1000	16.679	17.877
1250	19.973	22.316
1600	24.251	27.096
2000	29.041	31.779
2500	35.506	40.504
3200	45.255	50.563
4000	56.493	59.714
5000	70.035	73.517
6400	80.449	89.264
8000	99.044	112.206
10000	126.238	140.070
12800	155.417	177.294

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