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Panasonic Lumix DMC-LF1 vs Panasonic Lumix DMC-LX100: read noise comparison

Panasonic Lumix DMC-LF1DxO

The Panasonic Lumix DMC-LF1 was measured at 9 ISO settings from ISO 80 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (80) read noise is 1.45 DN. From ISO 400 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Panasonic Lumix DMC-LX100

The Panasonic Lumix DMC-LX100 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 1.03 DN, or 7 electrons at the sensor. From ISO 1250 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Full well at base ISO is about 26,847 electrons; unity gain is around ISO 680.

Panasonic Lumix DMC-LF1 vs Panasonic Lumix DMC-LX100 read noise table

ISOPanasonic Lumix DMC-LF1Panasonic Lumix DMC-LX100
801.454–
1001.8401.028
125–1.079
160–1.102
2003.0101.133
250–1.189
320–1.275
4004.4691.424
500–1.537
640–1.741
80010.1262.028
1000–2.428
1250–2.868
160019.8353.506
2000–4.347
2500–5.352
320037.2716.727
4000–8.340
5000–10.196
640075.06112.906
8000–16.564
10000–20.252
12800177.29425.457
16000–33.591
20000–40.504
25600–49.522

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Data: Photons to Photos · © William J. Claff