Canon EOS 5D Mark IV vs Canon EOS 5DS R: read noise comparison

Input-referred read noise at base ISO: Canon EOS 5D Mark IV 11.5 e⁻ (ISO 100), Canon EOS 5DS R 13.1 e⁻ (ISO 100).

Canon EOS 5D Mark IV

The Canon EOS 5D Mark IV was measured at 29 ISO settings from ISO 50 to ISO 102400. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 2.69 DN, or 11.5 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 32000 don't change analog gain (digital push). Full well at base ISO is about 67,871 electrons; unity gain is around ISO 430.

Canon EOS 5DS R

The Canon EOS 5DS R was measured at 21 ISO settings from ISO 50 to ISO 12800. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 5.62 DN, or 13.1 electrons at the sensor. From ISO 3200 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 33,406 electrons; unity gain is around ISO 230.

Canon EOS 5D Mark IV vs Canon EOS 5DS R read noise table

ISO	Canon EOS 5D Mark IV	Canon EOS 5DS R
50	2.928	5.502
100	2.694	5.618
125	2.848	5.696
160	2.313	5.776
200	2.751	5.979
250	3.160	6.190
320	2.949	6.589
400	3.706	7.013
500	4.170	7.568
640	4.257	8.398
800	5.389	9.514
1000	6.774	11.236
1250	6.964	13.086
1600	8.754	15.671
2000	10.853	19.160
2500	11.959	22.316
3200	14.825	26.538
4000	18.379	33.359
5000	20.252	38.319
6400	25.634	45.887
8000	31.559	–
10000	38.854	–
12800	49.522	90.510
16000	61.820	–
20000	76.639	–
25600	97.006	–
32000	122.786	–
51200	186.108	–
102400	306.555	–

Popular comparisons

All cameras · Open the full tool