Canon EOS 80D vs Canon EOS 850D: read noise comparison

Input-referred read noise at base ISO: Canon EOS 80D 5.8 e⁻ (ISO 100), Canon EOS 850D 6 e⁻ (ISO 100).

Canon EOS 80D

The Canon EOS 80D was measured at 24 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 2.83 DN, or 5.8 electrons at the sensor. From ISO 5000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 16000 don't change analog gain (digital push). Full well at base ISO is about 32,529 electrons; unity gain is around ISO 210.

Canon EOS 850D

The Canon EOS 850D was measured at 26 ISO settings from ISO 100 to ISO 51200. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 2.97 DN, or 6 electrons at the sensor. From ISO 5000 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 25600 don't change analog gain (digital push). Full well at base ISO is about 32,267 electrons; unity gain is around ISO 200.

Canon EOS 80D vs Canon EOS 850D read noise table

ISO	Canon EOS 80D	Canon EOS 850D
100	2.828	2.969
125	3.555	3.891
160	3.160	2.969
200	3.918	3.555
250	4.891	4.691
320	4.993	5.464
400	6.233	6.916
500	7.890	8.815
640	8.815	8.938
800	11.158	11.236
1000	14.026	14.221
1250	15.671	16.450
1600	19.698	20.821
2000	24.761	25.992
2500	27.474	29.651
3200	34.776	36.504
4000	44.324	46.206
5000	47.835	49.522
6400	59.714	62.683
8000	75.584	78.793
10000	93.701	97.006
12800	119.428	120.259
16000	149.086	152.219
20000	–	188.706
25600	224.411	233.941
51200	–	424.612

Popular comparisons

All cameras · Open the full tool