Nikon D5200 vs Nikon D5300: read noise comparison

Input-referred read noise at base ISO: Nikon D5200 2.8 e⁻ (ISO 100), Nikon D5300 3.3 e⁻ (ISO 100).

Nikon D5200

The Nikon D5200 was measured at 23 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 1.24 DN, or 2.8 electrons at the sensor. From ISO 400 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 37,022 electrons; unity gain is around ISO 230.

Nikon D5300

The Nikon D5300 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 1.58 DN, or 3.3 electrons at the sensor. From ISO 500 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 8000 don't change analog gain (digital push). Full well at base ISO is about 33,241 electrons; unity gain is around ISO 210.

Nikon D5200 vs Nikon D5300 read noise table

ISO	Nikon D5200	Nikon D5300
100	1.240	1.580
125	1.959	1.741
160	1.945	2.099
200	2.990	2.585
250	3.605	3.138
320	4.790	3.758
400	5.242	4.595
500	6.589	5.579
640	8.282	6.869
800	9.918	8.398
1000	12.467	10.411
1250	15.780	12.996
1600	19.427	15.562
2000	24.420	19.427
2500	30.910	24.251
3200	38.319	30.484
4000	48.168	38.586
5000	60.969	48.503
6400	76.639	60.548
8000	54.569	76.109
10000	69.551	97.006
12800	87.427	121.095
16000	–	147.033
20000	–	182.278
25600	173.645	230.720

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