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Panasonic Lumix DMC-GX85 vs Panasonic Lumix DMC-L10: read noise comparison

Input-referred read noise at base ISO: Panasonic Lumix DMC-GX85 4 e⁻ (ISO 100), Panasonic Lumix DMC-L10 16.9 e⁻ (ISO 100).

Panasonic Lumix DMC-GX85

The Panasonic Lumix DMC-GX85 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 0.55 DN, or 4 electrons at the sensor. From ISO 1000 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 28,843 electrons; unity gain is around ISO 730.

Panasonic Lumix DMC-L10

The Panasonic Lumix DMC-L10 was measured at 5 ISO settings from ISO 100 to ISO 1600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (100) read noise is 3.66 DN, or 16.9 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 800 don't change analog gain (digital push). Full well at base ISO is about 18,898 electrons; unity gain is around ISO 460.

Panasonic Lumix DMC-GX85 vs Panasonic Lumix DMC-L10 read noise table

ISO	Panasonic Lumix DMC-GX85	Panasonic Lumix DMC-L10
100	0.555	3.655
125	0.637	–
160	0.753	–
200	0.796	7.890
250	0.847	–
320	0.986	–
400	1.181	9.714
500	1.376	–
640	1.659	–
800	1.919	19.835
1000	2.297	–
1250	2.809	–
1600	3.411	42.224
2000	4.347	–
2500	5.426	–
3200	6.681	–
4000	8.282	–
5000	10.126	–
6400	12.641	–
8000	16.450	–
10000	20.252	–
12800	25.107	–
16000	32.672	–
20000	39.671	–
25600	50.213	–

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