Canon EOS M3 vs Canon EOS M5: read noise comparison

Input-referred read noise at base ISO: Canon EOS M3 10.9 e⁻ (ISO 100), Canon EOS M5 8.7 e⁻ (ISO 100).

Canon EOS M3

The Canon EOS M3 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 6.82 DN, or 10.9 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 22,915 electrons; unity gain is around ISO 160.

Canon EOS M5

The Canon EOS M5 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 4.50 DN, or 8.7 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 30,671 electrons; unity gain is around ISO 190.

Canon EOS M3 vs Canon EOS M5 read noise table

ISO	Canon EOS M3	Canon EOS M5
100	6.821	4.500
125	8.456	6.190
160	5.696	4.959
200	7.260	6.190
250	9.000	8.056
320	6.727	7.062
400	8.515	9.000
500	10.411	11.551
640	9.448	12.641
800	11.713	15.780
1000	14.621	19.835
1250	14.320	21.259
1600	18.001	26.723
2000	22.471	33.825
2500	23.918	37.014
3200	29.446	47.177
4000	37.014	58.081
5000	39.397	62.683
6400	49.867	79.341
8000	61.393	93.054
10000	77.708	112.986
12800	97.006	144.007
16000	–	173.645
20000	–	209.383
25600	–	257.781

Popular comparisons

All cameras · Open the full tool