Canon EOS 90D vs Canon EOS D60: read noise comparison

Input-referred read noise at base ISO: Canon EOS 90D 6.5 e⁻ (ISO 100), Canon EOS D60 14.6 e⁻ (ISO 100).

Canon EOS 90D

The Canon EOS 90D 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 3.92 DN, or 6.5 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 26,435 electrons; unity gain is around ISO 170.

Canon EOS D60

The Canon EOS D60 was measured at 5 ISO settings from ISO 100 to ISO 1000. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 1.59 DN, or 14.6 electrons at the sensor. From ISO 100 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 800 don't change analog gain (digital push). Full well at base ISO is about 36,426 electrons; unity gain is around ISO 920.

Canon EOS 90D vs Canon EOS D60 read noise table

ISO	Canon EOS 90D	Canon EOS D60
100	3.918	1.591
125	5.098	–
160	3.732	–
200	4.691	2.868
250	5.979	–
320	4.627	–
400	5.856	5.540
500	7.464	–
640	6.681	–
800	8.340	11.158
1000	10.629	11.004
1250	11.081	–
1600	14.026	–
2000	17.630	–
2500	19.427	–
3200	24.084	–
4000	30.696	–
5000	33.591	–
6400	41.933	–
8000	53.076	–
10000	64.893	–
12800	81.572	–
16000	101.829	–
20000	128.000	–
25600	159.786	–

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