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Canon EOS 500D vs Canon EOS 50D: read noise comparison

Canon EOS 500DDxO

The Canon EOS 500D was measured at 8 ISO settings from ISO 100 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (100) read noise is 7.46 DN. From ISO 1600 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Canon EOS 50DDxO

The Canon EOS 50D was measured at 7 ISO settings from ISO 200 to ISO 12800. Values were derived by Bill Claff from DxOMark lab data.

At base ISO (200) read noise is 7.94 DN. From ISO 800 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

Canon EOS 500D vs Canon EOS 50D read noise table

ISOCanon EOS 500DCanon EOS 50D
1007.464–
2007.8907.945
4009.0009.714
80013.17713.269
160021.25924.420
320038.31945.887
640088.035100.427
12800206.500178.527

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Data: Photons to Photos · © William J. Claff