Fujifilm Fujinon XF 60 mm f/2.4 R Macro
8. Vignetting
| JPEG | RAW |
| f/2.4 | f/2.4 |
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| f/2.8 | f/2.8 |
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| f/4.0 | f/4.0 |
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The differences, fortunately, are not especially pronounced and most likely they stem from a slight cropping of the JPEGs field of view after the distortion correction. At the maximum relative aperture, when it comes to JPEG files, the vignetting reaches a moderate level of 21% (-0.67 EV). On stopping down to f/2.8 you see that aberration decrease to 15% (-0.46 EV). The problem disappears completely by f/4.0 where it amounts to just 6% (-0.19 EV).
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In the case of RAW files, at the maximum relative aperture you must take into account the fact that the brightness loss will get to 28% (-0.96 EV). By f/2.8 that aberration decreases to the level of 22% (-0.71 EV). Similarly as in the case of JPEG files, the vignetting stops being bothersome at all by f/4.0 where it is just 10% (-0.32 EV).
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