Sony RX100 VI vs Sony RX100 VII: read noise comparison

Input-referred read noise at base ISO: Sony RX100 VI 3.2 e⁻ (ISO 125), Sony RX100 VII 3.1 e⁻ (ISO 100).

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 VII

The Sony RX100 VII (DSC-RX100M7) was measured at 22 ISO settings from ISO 100 to ISO 12800. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 3.94 DN, or 3.1 electrons at the sensor. From ISO 640 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 12,338 electrons; unity gain is around ISO 80.

Sony RX100 VI vs Sony RX100 VII read noise table

ISO	Sony RX100 VI	Sony RX100 VII
80	4.170	–
100	4.659	3.945
125	4.112	4.408
160	4.691	5.098
200	5.389	5.856
250	6.320	6.635
320	7.413	8.056
400	8.938	9.514
500	10.411	11.632
640	12.641	13.548
800	15.242	16.795
1000	17.877	20.535
1250	22.316	24.084
1600	27.096	29.651
2000	31.779	36.504
2500	40.504	45.887
3200	50.563	57.680
4000	59.714	70.035
5000	73.517	85.036
6400	89.264	103.250
8000	112.206	129.787
10000	140.070	160.898
12800	177.294	202.251

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