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FujiFilm X-T5 vs FujiFilm X-T5 (ES): read noise comparison

FujiFilm X-T5

The FujiFilm X-T5 was measured at 26 ISO settings from ISO 64 to ISO 51200. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (125) read noise is 1.69 DN, or 2.6 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 23,211 electrons; unity gain is around ISO 190.

FujiFilm X-T5 (ES)

The FujiFilm X-T5 (ES) was measured at 21 ISO settings from ISO 125 to ISO 12800. Values are Bill Claff's (Photons to Photos) direct measurements from raw files.

At base ISO (125) read noise is 2.73 DN. From ISO 1600 up the camera is effectively ISO-invariant: raising ISO further doesn't meaningfully lower shadow noise.

FujiFilm X-T5 vs FujiFilm X-T5 (ES) read noise table

ISOFujiFilm X-T5FujiFilm X-T5 (ES)
641.729–
802.042–
1002.549–
1251.6932.732
1602.0713.160
2002.4973.681
2503.0954.347
3203.8115.169
4004.7246.233
5003.4584.408
6404.4385.205
8005.2786.277
10006.5437.727
12508.0569.318
16009.98711.472
200012.81714.123
250015.78017.148
320019.16021.407
400023.58827.284
500030.91034.060
640038.05543.111
800048.16853.076
1000060.96967.649
1280071.50678.249
2560068.120–
5120067.649–

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Data: Photons to Photos · © William J. Claff