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Lens review

Fujifilm Fujinon XF 23 mm f/1.4 R

19 March 2014
Szymon Starczewski

8. Vignetting

The Fujifilm X system cameras correct vignetting in JPEG files so we always test JPEG and RAW files at the same time. The Fujinon’s 1.4/23 level of that aberration can be assessed by glancing at thumbnails, shown below.

JPEG RAW
f/1.4 f/1.4
Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting
f/2.0 f/2.0
Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting
f/2.8 f/2.8
Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting


As long as you work with JPEG files the vignetting shouldn’t bother you at all. At the maximum relative aperture it amounts to 27% (-0.90 EV) and is moderate. After stopping down to f/2.0 it decreases slightly to 22% (-0.73 EV) and when you pass to f/2.8 it becomes imperceptible, reaching just 14% (-0.42 EV). On further stopping down you see only slight improvement – the vignetting gets lower by just 2%.

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The RAW files are just another matter. The vignetting is distinct here, reaching at the maximum relative aperture as high as 50% (-2.01 EV). A noticeable decrease of that aberration is observed on stopping down to f/2.0 - the brightness loss falls to 35% (-1.27 EV). By f/2.8 and f/4.0 you deal with moderate level of vignetting, with the light fall-off in the corners being respectively 23% (-0.77 EV) and 21% (-0.67 EV). Further stopping down doesn’t bring any measurable effects.

Perhaps the results of the Fujinon 1.4/23 are not exactly impressive in this category but still you should remember that such an angle of view and f/1.4 aperture rise the standards quite significantly. It’s also worth remembering that most of full frame constructions of this type fare even worse, having 50-70% of vignetting at the maximum relative aperture.

Fujifilm Fujinon XF 23 mm f/1.4 R - Vignetting