alpereninyeri
TREN

Leica M-E Typ 220 vs Leica M MONOCHROM (Typ 246): read noise comparison

Leica M-E Typ 220DxO

The Leica M-E Typ 220 was measured at 6 ISO settings from ISO 80 to ISO 2500. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (80) read noise is 8.17 DN. From ISO 400 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Leica M MONOCHROM (Typ 246)

The Leica M MONOCHROM (Typ 246) was measured at 18 ISO settings from ISO 320 to ISO 25600. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (320) read noise is 0.97 DN, or 12.1 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 51,239 electrons; unity gain is around ISO 3970.

Leica M-E Typ 220 vs Leica M MONOCHROM (Typ 246) read noise table

ISOLeica M-E Typ 220Leica M MONOCHROM (Typ 246)
808.168–
20010.928–
320–0.973
40016.9121.021
500–1.133
640–1.357
80035.0171.404
1000–1.625
1250–2.071
160089.8842.621
2000–3.340
2500147.0334.056
3200–5.134
4000–6.635
5000–8.515
6400–10.928
8000–13.642
10000–17.509
12800–21.857
25600–46.527

Popular comparisons

All cameras · Open the full tool

Alperen Kılıç · Read Noise

Data: Photons to Photos · © William J. Claff