Sony RX100 III vs Sony RX100 V: read noise comparison

Input-referred read noise at base ISO: Sony RX100 III 2.7 e⁻ (ISO 125), Sony RX100 V 3.7 e⁻ (ISO 125).

Sony RX100 III

The Sony RX100 III (DSC-RX100M3) 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 3.58 DN, or 2.7 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 5000 don't change analog gain (digital push). Full well at base ISO is about 11,621 electrons; unity gain is around ISO 90.

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 III vs Sony RX100 V read noise table

ISO	Sony RX100 III	Sony RX100 V
80	3.580	3.837
100	4.199	4.257
125	3.580	3.972
160	4.170	4.438
200	4.891	5.063
250	5.776	5.897
320	6.964	6.916
400	8.282	8.112
500	9.987	9.714
640	12.042	11.551
800	14.520	13.737
1000	17.268	16.679
1250	20.966	19.973
1600	25.992	24.251
2000	31.341	29.041
2500	37.792	35.506
3200	48.168	45.255
4000	60.969	56.493
5000	75.584	70.035
6400	76.639	80.449
8000	97.681	99.044
10000	121.938	126.238
12800	155.417	155.417

Popular comparisons

All cameras · Open the full tool