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Panasonic Lumix DC-ZS70 vs Panasonic Lumix DMC-FZ1000: read noise comparison

Panasonic Lumix DC-ZS70DxO

The Panasonic Lumix DC-ZS70 was measured at 8 ISO settings from ISO 80 to ISO 6400. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (80) read noise is 14.32 DN. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Panasonic Lumix DMC-FZ1000

The Panasonic Lumix DMC-FZ1000 was measured at 26 ISO settings from ISO 80 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (80) read noise is 0.51 DN, or 2.2 electrons at the sensor. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise. Settings above ISO 12800 don't change analog gain (digital push). Full well at base ISO is about 16,563 electrons; unity gain is around ISO 330.

Panasonic Lumix DC-ZS70 vs Panasonic Lumix DMC-FZ1000 read noise table

ISOPanasonic Lumix DC-ZS70Panasonic Lumix DMC-FZ1000
8014.3200.514
10015.4550.920
125–1.079
160–1.257
20028.4431.505
250–1.803
320–2.144
40050.2132.549
500–3.053
640–3.732
80086.8234.500
1000–5.502
1250–6.543
1600153.2778.225
2000–10.056
2500–12.553
3200337.79415.889
4000–19.835
5000–24.933
6400803.41431.125
8000–39.397
10000–49.867
12800–62.683
16000–39.947
20000–49.522
25600–60.969

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Data: Photons to Photos · © William J. Claff