Fujifilm Fujinon XF 80 mm f/2.8 LM OIS WR Macro
8. Vignetting
| X-T2, JPEG, f/2.8 | X-T2, JPEG, f/4.0 |
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At the maximum relative aperture the vignetting is perfectly visible, amounting to 31% (−1.09 EV). By f/4.0 it decreases to 20% (−0.63 EV), and by f/5.6 it becomes practically imperceptible, diminishing to 10% (−0.29 EV).
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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-T2, RAW, f/2.8 | X-T2, RAW, f/4.0 |
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| X-T2, RAW, f/5.6 | X-T2, RAW, f/8.0 |
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In this case the vignetting is keenly felt. At the maximum relative aperture the tested lens loses as much as 45% (−1.74 EV) of light in the frame corners. The aberration decreases to 26% (−0.86 EV) by f/4.0 and to 11% (−0.33 EV) by f/5.6. By f/8.0 the problem disappears completely as the vignetting level at that point is just 4% (−0.11 EV).
| Fujifilm X-T2, RAW, f/2.8 |
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