Canon EOS M50 vs Canon EOS M6: read noise comparison

Input-referred read noise at base ISO: Canon EOS M50 5.1 e⁻ (ISO 100), Canon EOS M6 6.5 e⁻ (ISO 100).

Canon EOS M50

The Canon EOS M50 was measured at 25 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 2.89 DN, or 5.1 electrons at the sensor. From ISO 5000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 28,242 electrons; unity gain is around ISO 180.

Canon EOS M6

The Canon EOS M6 was measured at 25 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 3.56 DN, or 6.5 electrons at the sensor. From ISO 8000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 28,781 electrons; unity gain is around ISO 180.

Canon EOS M50 vs Canon EOS M6 read noise table

ISO	Canon EOS M50	Canon EOS M6
100	2.888	3.555
125	3.758	4.595
160	3.434	3.837
200	4.287	4.724
250	5.502	6.105
320	6.409	6.453
400	8.112	7.890
500	10.196	10.056
640	10.339	11.314
800	13.269	14.123
1000	16.564	18.001
1250	19.698	20.252
1600	24.420	26.173
2000	31.341	32.447
2500	33.825	36.002
3200	43.411	45.887
4000	54.569	56.886
5000	58.892	61.393
6400	74.028	77.172
8000	93.701	89.264
10000	115.360	111.430
12800	143.013	141.044
16000	176.069	170.072
20000	213.783	205.074
25600	259.574	252.476

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