Canon EOS 60D vs Canon EOS 60Da: read noise comparison

Input-referred read noise at base ISO: Canon EOS 60D 13.2 e⁻ (ISO 100), Canon EOS 60Da 14.2 e⁻ (ISO 100).

Canon EOS 60D

The Canon EOS 60D was measured at 20 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 7.21 DN, or 13.2 electrons at the sensor. From ISO 2500 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 6400 don't change analog gain (digital push). Full well at base ISO is about 26,186 electrons; unity gain is around ISO 180.

Canon EOS 60Da

The Canon EOS 60Da was measured at 20 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 5.98 DN, or 14.2 electrons at the sensor. From ISO 2500 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 6400 don't change analog gain (digital push). Full well at base ISO is about 33,926 electrons; unity gain is around ISO 240.

Canon EOS 60D vs Canon EOS 60Da read noise table

ISO	Canon EOS 60D	Canon EOS 60Da
100	7.210	5.979
125	9.126	7.727
160	6.190	5.205
200	7.621	6.498
250	9.514	8.112
320	7.311	6.277
400	9.126	7.835
500	11.551	9.918
640	10.056	8.815
800	12.641	11.004
1000	15.780	14.123
1250	16.336	15.032
1600	20.393	18.896
2000	25.813	23.425
2500	29.041	26.909
3200	36.252	33.359
4000	43.111	39.124
5000	53.446	49.522
6400	68.594	62.683
12800	129.787	118.603

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