alpereninyeri

Sony a390 read noise vs ISO

The Sony a390 (DSLR-A390) was measured at 6 ISO settings from ISO 100 to ISO 3200. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (100) read noise is 1.77 DN. Read noise keeps falling across the measured range, so the camera isn't fully ISO-invariant there.

Sony a390 read noise table

ISORead noise (DN)log₂
1001.7650.82
2003.7581.91
4006.2772.65
80012.8173.68
160024.2514.60
320040.2245.33

Comparisons with this camera

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Alperen Kılıç · Read Noise

Data: Photons to Photos · © William J. Claff