Fujifilm Fujinon XF 23 mm f/2.8 R WR
8. Vignetting
| X-T2, JPEG, f/2.8 | X-T2, RAW, f/2.8 |
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| X-T2, JPEG, f/4.0 | X-T2, RAW, f/4.0 |
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| X-T2, JPEG, f/5.6 | X-T2, RAW, f/5.6 |
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In case of JPEG files the situation looks very sensible indeed. At the maximum relative aperture vignetting reaches 28% (−0.94 EV), a really moderate result for the physical dimensions, offered by the tested lens. By f/4.0 this aberration decreases to 17% (-0.54 EV), and by f/5.6 it increases again, amounting to 18% (-0.57 EV). By f/8.0 and f/11 all problems end completely because our results in that place amount to, respectively, 11% (-0.35 EV) and 5% (-0.16 EV).
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Still Fujifilm bodies are known for correcting JPEG files without asking for permission even if you attach to them third-party lenses. Only uncorrected and uncropped RAW files are able to show you the real level of this aberration. Here the results are noticeably higher – at the maximum relative aperture you have to take into account light fall-off reaching 55% (−2.31 EV). It is a high value but still you have to remember that you deal here with a very small lens that also provides a significant angle of view.
By f/4.0 vignetting decreases to 44% (−1.65 EV), and by f/5.6 to 39% (−1.42 EV). By f/8.0 you have to make do with a loss reaching 34% (−1.19 EV), and by f/11 and f/16 we got the following results: 28% (-0.95 EV) and 25% (-0.85 EV).
| Fujifilm X-T2, RAW, f/2.8 |
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