Fujifilm Fujinon XF 50 mm f/2 R WR
8. Vignetting
| X-E1, JPEG, f/2.0 | X-T2, JPEG, f/2.0 |
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| X-E1, JPEG, f/2.8 | X-T2, JPEG, f/2.8 |
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| X-E1, JPEG, f/4.0 | X-T2, JPEG, f/4.0 |
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You don’t have to worry – already at the maximum relative aperture the vignetting is negligible, for the X-E1 amounting to 8% (−0.58 EV), and for the X-T2 being 11% (−0.67 EV) so a bit higher.
The Fujifilm system corrects the vignetting on JPEGs so only an analysis of RAW files can reveal the truth about the performance in this category. Appropriate thumbnails are shown below.
| X-E1, RAW, f/2.0 | X-T2, RAW, f/2.0 |
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| X-E1, RAW, f/2.8 | X-T2, RAW, f/2.8 |
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| X-E1, RAW, f/4.0 | X-T2, RAW, f/4.0 |
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If you use the X-E1 body then, at the maximum relative aperture, you lose as much as 44% of light (−1.66 EV) in frame corners. On stopping down the aperture to f/2.8 you reduce that problem to 26% (−0.85 EV). By f/5.6 and f/8.0 the vignetting becomes practically imperceptible, amounting to, respectively, 11% (−0.35 EV) and 9% (−0.27 EV).
After attaching the lens to the X-T2 the results don’t change noticeably. Differences reach just 1-2% so are within our margin of error but we are going to list the values anyway for form’s sake. By f/2.0 the brightness loss is 42% (−1.58 EV), by f/2.8 it decreases to 24% (−0.79 EV), and by f/4.0 it is lowered to 15% (−0.48 EV). F/5.6 and f/8.0 apertures provide the respective results: 10% (−0.31 EV) and 8% (−0.24 EV).
| Fujifilm X-T2, RAW, f/2.0 |
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