Nikon D60 vs Nikon D610: read noise comparison

Input-referred read noise at base ISO: Nikon D60 14.8 e⁻ (ISO 100), Nikon D610 3.9 e⁻ (ISO 100).

Nikon D60

The Nikon D60 was measured at 6 ISO settings from ISO 100 to ISO 3200. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 2.13 DN, or 14.8 electrons at the sensor. From ISO 200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 1600 don't change analog gain (digital push). Full well at base ISO is about 28,451 electrons; unity gain is around ISO 700.

Nikon D610

The Nikon D610 was measured at 26 ISO settings from ISO 50 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 0.86 DN, or 3.9 electrons at the sensor. From ISO 200 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 1600 don't change analog gain (digital push). Full well at base ISO is about 75,753 electrons; unity gain is around ISO 460.

Nikon D60 vs Nikon D610 read noise table

ISO	Nikon D60	Nikon D610
50	–	0.859
64	–	0.859
80	–	0.859
100	2.129	0.859
125	–	1.007
160	–	1.197
200	3.317	1.414
250	–	1.705
320	–	2.056
400	5.776	2.809
500	–	3.458
640	–	4.170
800	11.551	5.028
1000	–	6.063
1250	–	7.621
1600	23.264	9.849
2000	–	12.467
2500	–	15.671
3200	46.527	19.973
4000	–	24.933
5000	–	31.341
6400	–	39.947
8000	–	42.518
10000	–	53.076
12800	–	68.120
25600	–	135.298

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